20163816920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38776571}}^1$

素因数の和:38776595

約数の個数: 32

約数和(自身を含む): 48858480720

約数和(自身を除く): 28694663800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38776571, 77553142, 155106284, 193882855, 310212568, 387765710, 504095423, 775531420, 1008190846, 1551062840, 2016381692, 2520477115, 4032763384, 5040954230, 10081908460, 20163816920]

約数ペア:

[(1, 20163816920), (2, 10081908460), (4, 5040954230), (5, 4032763384), (8, 2520477115), (10, 2016381692), (13, 1551062840), (20, 1008190846), (26, 775531420), (40, 504095423), (52, 387765710), (65, 310212568), (104, 193882855), (130, 155106284), (260, 77553142), (520, 38776571)]