19610440

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{941}}^1$

素因数の和:1473

約数の個数: 32

約数和(自身を含む): 44255160

約数和(自身を除く): 24644720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 941, 1042, 1882, 2084, 2605, 3764, 4168, 4705, 5210, 7528, 9410, 10420, 18820, 20840, 37640, 490261, 980522, 1961044, 2451305, 3922088, 4902610, 9805220, 19610440]

約数ペア:

[(1, 19610440), (2, 9805220), (4, 4902610), (5, 3922088), (8, 2451305), (10, 1961044), (20, 980522), (40, 490261), (521, 37640), (941, 20840), (1042, 18820), (1882, 10420), (2084, 9410), (2605, 7528), (3764, 5210), (4168, 4705)]