78649360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{877}}^1$

素因数の和:968

約数の個数: 80

約数和(自身を含む): 195969600

約数和(自身を除く): 117320240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 380, 472, 590, 760, 877, 944, 1121, 1180, 1520, 1754, 2242, 2360, 3508, 4385, 4484, 4720, 5605, 7016, 8770, 8968, 11210, 14032, 16663, 17540, 17936, 22420, 33326, 35080, 44840, 51743, 66652, 70160, 83315, 89680, 103486, 133304, 166630, 206972, 258715, 266608, 333260, 413944, 517430, 666520, 827888, 983117, 1034860, 1333040, 1966234, 2069720, 3932468, 4139440, 4915585, 7864936, 9831170, 15729872, 19662340, 39324680, 78649360]

約数ペア:

[(1, 78649360), (2, 39324680), (4, 19662340), (5, 15729872), (8, 9831170), (10, 7864936), (16, 4915585), (19, 4139440), (20, 3932468), (38, 2069720), (40, 1966234), (59, 1333040), (76, 1034860), (80, 983117), (95, 827888), (118, 666520), (152, 517430), (190, 413944), (236, 333260), (295, 266608), (304, 258715), (380, 206972), (472, 166630), (590, 133304), (760, 103486), (877, 89680), (944, 83315), (1121, 70160), (1180, 66652), (1520, 51743), (1754, 44840), (2242, 35080), (2360, 33326), (3508, 22420), (4385, 17936), (4484, 17540), (4720, 16663), (5605, 14032), (7016, 11210), (8770, 8968)]