81908315775

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{4637}}^1$

素因数の和:4744

約数の個数: 240

約数和(自身を含む): 181208589408

約数和(自身を除く): 99300273633

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 27, 33, 39, 45, 55, 61, 65, 75, 81, 99, 117, 135, 143, 165, 183, 195, 225, 275, 297, 305, 325, 351, 405, 429, 495, 549, 585, 671, 675, 715, 793, 825, 891, 915, 975, 1053, 1287, 1485, 1525, 1647, 1755, 2013, 2025, 2145, 2379, 2475, 2745, 2925, 3355, 3575, 3861, 3965, 4455, 4575, 4637, 4941, 5265, 6039, 6435, 7137, 7425, 8235, 8723, 8775, 10065, 10725, 11583, 11895, 13725, 13911, 16775, 18117, 19305, 19825, 21411, 22275, 23185, 24705, 26169, 26325, 30195, 32175, 35685, 41175, 41733, 43615, 50325, 51007, 54351, 57915, 59475, 60281, 64233, 69555, 78507, 90585, 96525, 107055, 115925, 123525, 125199, 130845, 150975, 153021, 178425, 180843, 208665, 218075, 235521, 255035, 271755, 282857, 289575, 301405, 321165, 347775, 375597, 392535, 452925, 459063, 535275, 542529, 625995, 654225, 663091, 706563, 765105, 848571, 904215, 1043325, 1177605, 1275175, 1358775, 1377189, 1414285, 1507025, 1605825, 1627587, 1877985, 1962675, 1989273, 2295315, 2545713, 2712645, 3111427, 3129975, 3315455, 3532815, 3677141, 3825525, 4131567, 4242855, 4521075, 4882761, 5888025, 5967819, 6885945, 7071425, 7637139, 8137935, 9334281, 9389925, 9946365, 11031423, 11476575, 12728565, 13563225, 15557135, 16577275, 17664075, 17903457, 18385705, 20657835, 21214275, 22911417, 24413805, 28002843, 29839095, 33094269, 34429725, 38185695, 40448551, 40689675, 46671405, 49731825, 53710371, 55157115, 63642825, 77785675, 84008529, 89517285, 91928525, 99282807, 103289175, 114557085, 121345653, 122069025, 140014215, 149195475, 165471345, 190928475, 202242755, 233357025, 252025587, 268551855, 275785575, 297848421, 364036959, 420042645, 447586425, 496414035, 572785425, 606728265, 700071075, 827356725, 1011213775, 1092110877, 1260127935, 1342759275, 1489242105, 1820184795, 2100213225, 2482070175, 3033641325, 3276332631, 5460554385, 6300639675, 7446210525, 9100923975, 16381663155, 27302771925, 81908315775]

約数ペア:

[(1, 81908315775), (3, 27302771925), (5, 16381663155), (9, 9100923975), (11, 7446210525), (13, 6300639675), (15, 5460554385), (25, 3276332631), (27, 3033641325), (33, 2482070175), (39, 2100213225), (45, 1820184795), (55, 1489242105), (61, 1342759275), (65, 1260127935), (75, 1092110877), (81, 1011213775), (99, 827356725), (117, 700071075), (135, 606728265), (143, 572785425), (165, 496414035), (183, 447586425), (195, 420042645), (225, 364036959), (275, 297848421), (297, 275785575), (305, 268551855), (325, 252025587), (351, 233357025), (405, 202242755), (429, 190928475), (495, 165471345), (549, 149195475), (585, 140014215), (671, 122069025), (675, 121345653), (715, 114557085), (793, 103289175), (825, 99282807), (891, 91928525), (915, 89517285), (975, 84008529), (1053, 77785675), (1287, 63642825), (1485, 55157115), (1525, 53710371), (1647, 49731825), (1755, 46671405), (2013, 40689675), (2025, 40448551), (2145, 38185695), (2379, 34429725), (2475, 33094269), (2745, 29839095), (2925, 28002843), (3355, 24413805), (3575, 22911417), (3861, 21214275), (3965, 20657835), (4455, 18385705), (4575, 17903457), (4637, 17664075), (4941, 16577275), (5265, 15557135), (6039, 13563225), (6435, 12728565), (7137, 11476575), (7425, 11031423), (8235, 9946365), (8723, 9389925), (8775, 9334281), (10065, 8137935), (10725, 7637139), (11583, 7071425), (11895, 6885945), (13725, 5967819), (13911, 5888025), (16775, 4882761), (18117, 4521075), (19305, 4242855), (19825, 4131567), (21411, 3825525), (22275, 3677141), (23185, 3532815), (24705, 3315455), (26169, 3129975), (26325, 3111427), (30195, 2712645), (32175, 2545713), (35685, 2295315), (41175, 1989273), (41733, 1962675), (43615, 1877985), (50325, 1627587), (51007, 1605825), (54351, 1507025), (57915, 1414285), (59475, 1377189), (60281, 1358775), (64233, 1275175), (69555, 1177605), (78507, 1043325), (90585, 904215), (96525, 848571), (107055, 765105), (115925, 706563), (123525, 663091), (125199, 654225), (130845, 625995), (150975, 542529), (153021, 535275), (178425, 459063), (180843, 452925), (208665, 392535), (218075, 375597), (235521, 347775), (255035, 321165), (271755, 301405), (282857, 289575)]