20185776

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:331

約数の個数: 120

約数和(自身を含む): 62558496

約数和(自身を除く): 42372720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 41, 48, 52, 72, 78, 82, 104, 117, 123, 144, 156, 164, 208, 234, 246, 263, 312, 328, 369, 468, 492, 526, 533, 624, 656, 738, 789, 936, 984, 1052, 1066, 1476, 1578, 1599, 1872, 1968, 2104, 2132, 2367, 2952, 3156, 3198, 3419, 4208, 4264, 4734, 4797, 5904, 6312, 6396, 6838, 8528, 9468, 9594, 10257, 10783, 12624, 12792, 13676, 18936, 19188, 20514, 21566, 25584, 27352, 30771, 32349, 37872, 38376, 41028, 43132, 54704, 61542, 64698, 76752, 82056, 86264, 97047, 123084, 129396, 140179, 164112, 172528, 194094, 246168, 258792, 280358, 388188, 420537, 492336, 517584, 560716, 776376, 841074, 1121432, 1261611, 1552752, 1682148, 2242864, 2523222, 3364296, 5046444, 6728592, 10092888, 20185776]

約数ペア:

[(1, 20185776), (2, 10092888), (3, 6728592), (4, 5046444), (6, 3364296), (8, 2523222), (9, 2242864), (12, 1682148), (13, 1552752), (16, 1261611), (18, 1121432), (24, 841074), (26, 776376), (36, 560716), (39, 517584), (41, 492336), (48, 420537), (52, 388188), (72, 280358), (78, 258792), (82, 246168), (104, 194094), (117, 172528), (123, 164112), (144, 140179), (156, 129396), (164, 123084), (208, 97047), (234, 86264), (246, 82056), (263, 76752), (312, 64698), (328, 61542), (369, 54704), (468, 43132), (492, 41028), (526, 38376), (533, 37872), (624, 32349), (656, 30771), (738, 27352), (789, 25584), (936, 21566), (984, 20514), (1052, 19188), (1066, 18936), (1476, 13676), (1578, 12792), (1599, 12624), (1872, 10783), (1968, 10257), (2104, 9594), (2132, 9468), (2367, 8528), (2952, 6838), (3156, 6396), (3198, 6312), (3419, 5904), (4208, 4797), (4264, 4734)]