19604240

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1283}}^1$

素因数の和:1487

約数の個数: 40

約数和(自身を含む): 45854208

約数和(自身を除く): 26249968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1283, 1528, 1910, 2566, 3056, 3820, 5132, 6415, 7640, 10264, 12830, 15280, 20528, 25660, 51320, 102640, 245053, 490106, 980212, 1225265, 1960424, 2450530, 3920848, 4901060, 9802120, 19604240]

約数ペア:

[(1, 19604240), (2, 9802120), (4, 4901060), (5, 3920848), (8, 2450530), (10, 1960424), (16, 1225265), (20, 980212), (40, 490106), (80, 245053), (191, 102640), (382, 51320), (764, 25660), (955, 20528), (1283, 15280), (1528, 12830), (1910, 10264), (2566, 7640), (3056, 6415), (3820, 5132)]