20471240

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4783}}^1$

素因数の和:4901

約数の個数: 32

約数和(自身を含む): 46500480

約数和(自身を除く): 26029240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 4783, 9566, 19132, 23915, 38264, 47830, 95660, 191320, 511781, 1023562, 2047124, 2558905, 4094248, 5117810, 10235620, 20471240]

約数ペア:

[(1, 20471240), (2, 10235620), (4, 5117810), (5, 4094248), (8, 2558905), (10, 2047124), (20, 1023562), (40, 511781), (107, 191320), (214, 95660), (428, 47830), (535, 38264), (856, 23915), (1070, 19132), (2140, 9566), (4280, 4783)]