1638531720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2969}}^1$

素因数の和:3069

約数の個数: 256

約数和(自身を含む): 6329664000

約数和(自身を除く): 4691132280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 73, 84, 90, 105, 108, 120, 126, 135, 140, 146, 168, 180, 189, 210, 216, 219, 252, 270, 280, 292, 315, 360, 365, 378, 420, 438, 504, 511, 540, 584, 630, 657, 730, 756, 840, 876, 945, 1022, 1080, 1095, 1260, 1314, 1460, 1512, 1533, 1752, 1890, 1971, 2044, 2190, 2520, 2555, 2628, 2920, 2969, 3066, 3285, 3780, 3942, 4088, 4380, 4599, 5110, 5256, 5938, 6132, 6570, 7560, 7665, 7884, 8760, 8907, 9198, 9855, 10220, 11876, 12264, 13140, 13797, 14845, 15330, 15768, 17814, 18396, 19710, 20440, 20783, 22995, 23752, 26280, 26721, 27594, 29690, 30660, 35628, 36792, 39420, 41566, 44535, 45990, 53442, 55188, 59380, 61320, 62349, 68985, 71256, 78840, 80163, 83132, 89070, 91980, 103915, 106884, 110376, 118760, 124698, 133605, 137970, 160326, 166264, 178140, 183960, 187047, 207830, 213768, 216737, 249396, 267210, 275940, 311745, 320652, 356280, 374094, 400815, 415660, 433474, 498792, 534420, 551880, 561141, 623490, 641304, 650211, 748188, 801630, 831320, 866948, 935235, 1068840, 1083685, 1122282, 1246980, 1300422, 1496376, 1517159, 1603260, 1733896, 1870470, 1950633, 2167370, 2244564, 2493960, 2600844, 2805705, 3034318, 3206520, 3251055, 3740940, 3901266, 4334740, 4489128, 4551477, 5201688, 5611410, 5851899, 6068636, 6502110, 7481880, 7585795, 7802532, 8669480, 9102954, 9753165, 11222820, 11703798, 12137272, 13004220, 13654431, 15171590, 15605064, 18205908, 19506330, 22445640, 22757385, 23407596, 26008440, 27308862, 29259495, 30343180, 36411816, 39012660, 40963293, 45514770, 46815192, 54617724, 58518990, 60686360, 68272155, 78025320, 81926586, 91029540, 109235448, 117037980, 136544310, 163853172, 182059080, 204816465, 234075960, 273088620, 327706344, 409632930, 546177240, 819265860, 1638531720]

約数ペア:

[(1, 1638531720), (2, 819265860), (3, 546177240), (4, 409632930), (5, 327706344), (6, 273088620), (7, 234075960), (8, 204816465), (9, 182059080), (10, 163853172), (12, 136544310), (14, 117037980), (15, 109235448), (18, 91029540), (20, 81926586), (21, 78025320), (24, 68272155), (27, 60686360), (28, 58518990), (30, 54617724), (35, 46815192), (36, 45514770), (40, 40963293), (42, 39012660), (45, 36411816), (54, 30343180), (56, 29259495), (60, 27308862), (63, 26008440), (70, 23407596), (72, 22757385), (73, 22445640), (84, 19506330), (90, 18205908), (105, 15605064), (108, 15171590), (120, 13654431), (126, 13004220), (135, 12137272), (140, 11703798), (146, 11222820), (168, 9753165), (180, 9102954), (189, 8669480), (210, 7802532), (216, 7585795), (219, 7481880), (252, 6502110), (270, 6068636), (280, 5851899), (292, 5611410), (315, 5201688), (360, 4551477), (365, 4489128), (378, 4334740), (420, 3901266), (438, 3740940), (504, 3251055), (511, 3206520), (540, 3034318), (584, 2805705), (630, 2600844), (657, 2493960), (730, 2244564), (756, 2167370), (840, 1950633), (876, 1870470), (945, 1733896), (1022, 1603260), (1080, 1517159), (1095, 1496376), (1260, 1300422), (1314, 1246980), (1460, 1122282), (1512, 1083685), (1533, 1068840), (1752, 935235), (1890, 866948), (1971, 831320), (2044, 801630), (2190, 748188), (2520, 650211), (2555, 641304), (2628, 623490), (2920, 561141), (2969, 551880), (3066, 534420), (3285, 498792), (3780, 433474), (3942, 415660), (4088, 400815), (4380, 374094), (4599, 356280), (5110, 320652), (5256, 311745), (5938, 275940), (6132, 267210), (6570, 249396), (7560, 216737), (7665, 213768), (7884, 207830), (8760, 187047), (8907, 183960), (9198, 178140), (9855, 166264), (10220, 160326), (11876, 137970), (12264, 133605), (13140, 124698), (13797, 118760), (14845, 110376), (15330, 106884), (15768, 103915), (17814, 91980), (18396, 89070), (19710, 83132), (20440, 80163), (20783, 78840), (22995, 71256), (23752, 68985), (26280, 62349), (26721, 61320), (27594, 59380), (29690, 55188), (30660, 53442), (35628, 45990), (36792, 44535), (39420, 41566)]