8640212

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 18480000

約数和(自身を除く): 9839788

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 109, 133, 149, 218, 266, 298, 436, 532, 596, 763, 1043, 1526, 2071, 2086, 2831, 3052, 4142, 4172, 5662, 8284, 11324, 14497, 16241, 19817, 28994, 32482, 39634, 57988, 64964, 79268, 113687, 227374, 308579, 454748, 617158, 1234316, 2160053, 4320106, 8640212]

約数ペア:

[(1, 8640212), (2, 4320106), (4, 2160053), (7, 1234316), (14, 617158), (19, 454748), (28, 308579), (38, 227374), (76, 113687), (109, 79268), (133, 64964), (149, 57988), (218, 39634), (266, 32482), (298, 28994), (436, 19817), (532, 16241), (596, 14497), (763, 11324), (1043, 8284), (1526, 5662), (2071, 4172), (2086, 4142), (2831, 3052)]