18320199280

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1026917}}^1$

素因数の和:1027153

約数の個数: 40

約数和(自身を含む): 42785511552

約数和(自身を除く): 24465312272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920, 17840, 1026917, 2053834, 4107668, 5134585, 8215336, 10269170, 16430672, 20538340, 41076680, 82153360, 229002491, 458004982, 916009964, 1145012455, 1832019928, 2290024910, 3664039856, 4580049820, 9160099640, 18320199280]

約数ペア:

[(1, 18320199280), (2, 9160099640), (4, 4580049820), (5, 3664039856), (8, 2290024910), (10, 1832019928), (16, 1145012455), (20, 916009964), (40, 458004982), (80, 229002491), (223, 82153360), (446, 41076680), (892, 20538340), (1115, 16430672), (1784, 10269170), (2230, 8215336), (3568, 5134585), (4460, 4107668), (8920, 2053834), (17840, 1026917)]