64919920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{62423}}^1$

素因数の和:62449

約数の個数: 40

約数和(自身を含む): 162552096

約数和(自身を除く): 97632176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 62423, 124846, 249692, 312115, 499384, 624230, 811499, 998768, 1248460, 1622998, 2496920, 3245996, 4057495, 4993840, 6491992, 8114990, 12983984, 16229980, 32459960, 64919920]

約数ペア:

[(1, 64919920), (2, 32459960), (4, 16229980), (5, 12983984), (8, 8114990), (10, 6491992), (13, 4993840), (16, 4057495), (20, 3245996), (26, 2496920), (40, 1622998), (52, 1248460), (65, 998768), (80, 811499), (104, 624230), (130, 499384), (208, 312115), (260, 249692), (520, 124846), (1040, 62423)]