74878960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71999}}^1$

素因数の和:72025

約数の個数: 40

約数和(自身を含む): 187488000

約数和(自身を除く): 112609040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 71999, 143998, 287996, 359995, 575992, 719990, 935987, 1151984, 1439980, 1871974, 2879960, 3743948, 4679935, 5759920, 7487896, 9359870, 14975792, 18719740, 37439480, 74878960]

約数ペア:

[(1, 74878960), (2, 37439480), (4, 18719740), (5, 14975792), (8, 9359870), (10, 7487896), (13, 5759920), (16, 4679935), (20, 3743948), (26, 2879960), (40, 1871974), (52, 1439980), (65, 1151984), (80, 935987), (104, 719990), (130, 575992), (208, 359995), (260, 287996), (520, 143998), (1040, 71999)]