2000420920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{442571}}^1$

素因数の和:442695

約数の個数: 32

約数和(自身を含む): 4540788720

約数和(自身を除く): 2540367800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 442571, 885142, 1770284, 2212855, 3540568, 4425710, 8851420, 17702840, 50010523, 100021046, 200042092, 250052615, 400084184, 500105230, 1000210460, 2000420920]

約数ペア:

[(1, 2000420920), (2, 1000210460), (4, 500105230), (5, 400084184), (8, 250052615), (10, 200042092), (20, 100021046), (40, 50010523), (113, 17702840), (226, 8851420), (452, 4425710), (565, 3540568), (904, 2212855), (1130, 1770284), (2260, 885142), (4520, 442571)]