20808400860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1\times {\mathrm{757}}^1$

素因数の和:1493

約数の個数: 288

約数和(自身を含む): 72171957312

約数和(自身を除く): 51363556452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 691, 757, 765, 780, 884, 1020, 1105, 1170, 1326, 1382, 1514, 1530, 1989, 2073, 2210, 2271, 2340, 2652, 2764, 3028, 3060, 3315, 3455, 3785, 3978, 4146, 4420, 4542, 6219, 6630, 6813, 6910, 7570, 7956, 8292, 8983, 9084, 9841, 9945, 10365, 11355, 11747, 12438, 12869, 13260, 13626, 13820, 15140, 17966, 19682, 19890, 20730, 22710, 23494, 24876, 25738, 26949, 27252, 29523, 31095, 34065, 35241, 35932, 38607, 39364, 39780, 41460, 44915, 45420, 46988, 49205, 51476, 53898, 58735, 59046, 62190, 64345, 68130, 70482, 77214, 80847, 88569, 89830, 98410, 105723, 107796, 115821, 117470, 118092, 124380, 128690, 134745, 136260, 140964, 147615, 152711, 154428, 161694, 167297, 176205, 177138, 179660, 193035, 196820, 211446, 231642, 234940, 257380, 269490, 295230, 305422, 323388, 334594, 352410, 354276, 386070, 404235, 422892, 442845, 458133, 463284, 501891, 523087, 528615, 538980, 579105, 590460, 610844, 669188, 704820, 763555, 772140, 808470, 836485, 885690, 916266, 1003782, 1046174, 1057230, 1158210, 1374399, 1505673, 1527110, 1569261, 1616940, 1672970, 1771380, 1832532, 2007564, 2092348, 2114460, 2290665, 2316420, 2509455, 2615435, 2748798, 3011346, 3054220, 3138522, 3345940, 4581330, 4707783, 5018910, 5230870, 5497596, 6022692, 6277044, 6800131, 6871995, 7528365, 7846305, 8892479, 9162660, 9415566, 10037820, 10461740, 13600262, 13743990, 15056730, 15692610, 17784958, 18831132, 20400393, 23538915, 26677437, 27200524, 27487980, 30113460, 31385220, 34000655, 35569916, 40800786, 44462395, 47077830, 53354874, 61201179, 68001310, 80032311, 81601572, 88924790, 94155660, 102001965, 106709748, 115602227, 122402358, 133387185, 136002620, 160064622, 177849580, 204003930, 231204454, 244804716, 266774370, 306005895, 320129244, 346806681, 400161555, 408007860, 462408908, 533548740, 578011135, 612011790, 693613362, 800323110, 1040420043, 1156022270, 1224023580, 1387226724, 1600646220, 1734033405, 2080840086, 2312044540, 3468066810, 4161680172, 5202100215, 6936133620, 10404200430, 20808400860]

約数ペア:

[(1, 20808400860), (2, 10404200430), (3, 6936133620), (4, 5202100215), (5, 4161680172), (6, 3468066810), (9, 2312044540), (10, 2080840086), (12, 1734033405), (13, 1600646220), (15, 1387226724), (17, 1224023580), (18, 1156022270), (20, 1040420043), (26, 800323110), (30, 693613362), (34, 612011790), (36, 578011135), (39, 533548740), (45, 462408908), (51, 408007860), (52, 400161555), (60, 346806681), (65, 320129244), (68, 306005895), (78, 266774370), (85, 244804716), (90, 231204454), (102, 204003930), (117, 177849580), (130, 160064622), (153, 136002620), (156, 133387185), (170, 122402358), (180, 115602227), (195, 106709748), (204, 102001965), (221, 94155660), (234, 88924790), (255, 81601572), (260, 80032311), (306, 68001310), (340, 61201179), (390, 53354874), (442, 47077830), (468, 44462395), (510, 40800786), (585, 35569916), (612, 34000655), (663, 31385220), (691, 30113460), (757, 27487980), (765, 27200524), (780, 26677437), (884, 23538915), (1020, 20400393), (1105, 18831132), (1170, 17784958), (1326, 15692610), (1382, 15056730), (1514, 13743990), (1530, 13600262), (1989, 10461740), (2073, 10037820), (2210, 9415566), (2271, 9162660), (2340, 8892479), (2652, 7846305), (2764, 7528365), (3028, 6871995), (3060, 6800131), (3315, 6277044), (3455, 6022692), (3785, 5497596), (3978, 5230870), (4146, 5018910), (4420, 4707783), (4542, 4581330), (6219, 3345940), (6630, 3138522), (6813, 3054220), (6910, 3011346), (7570, 2748798), (7956, 2615435), (8292, 2509455), (8983, 2316420), (9084, 2290665), (9841, 2114460), (9945, 2092348), (10365, 2007564), (11355, 1832532), (11747, 1771380), (12438, 1672970), (12869, 1616940), (13260, 1569261), (13626, 1527110), (13820, 1505673), (15140, 1374399), (17966, 1158210), (19682, 1057230), (19890, 1046174), (20730, 1003782), (22710, 916266), (23494, 885690), (24876, 836485), (25738, 808470), (26949, 772140), (27252, 763555), (29523, 704820), (31095, 669188), (34065, 610844), (35241, 590460), (35932, 579105), (38607, 538980), (39364, 528615), (39780, 523087), (41460, 501891), (44915, 463284), (45420, 458133), (46988, 442845), (49205, 422892), (51476, 404235), (53898, 386070), (58735, 354276), (59046, 352410), (62190, 334594), (64345, 323388), (68130, 305422), (70482, 295230), (77214, 269490), (80847, 257380), (88569, 234940), (89830, 231642), (98410, 211446), (105723, 196820), (107796, 193035), (115821, 179660), (117470, 177138), (118092, 176205), (124380, 167297), (128690, 161694), (134745, 154428), (136260, 152711), (140964, 147615)]