87079640

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{5171}}^1$

素因数の和:5603

約数の個数: 32

約数和(自身を含む): 196432560

約数和(自身を除く): 109352920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 5171, 8420, 10342, 16840, 20684, 25855, 41368, 51710, 103420, 206840, 2176991, 4353982, 8707964, 10884955, 17415928, 21769910, 43539820, 87079640]

約数ペア:

[(1, 87079640), (2, 43539820), (4, 21769910), (5, 17415928), (8, 10884955), (10, 8707964), (20, 4353982), (40, 2176991), (421, 206840), (842, 103420), (1684, 51710), (2105, 41368), (3368, 25855), (4210, 20684), (5171, 16840), (8420, 10342)]