25478960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24499}}^1$

素因数の和:24525

約数の個数: 40

約数和(自身を含む): 63798000

約数和(自身を除く): 38319040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24499, 48998, 97996, 122495, 195992, 244990, 318487, 391984, 489980, 636974, 979960, 1273948, 1592435, 1959920, 2547896, 3184870, 5095792, 6369740, 12739480, 25478960]

約数ペア:

[(1, 25478960), (2, 12739480), (4, 6369740), (5, 5095792), (8, 3184870), (10, 2547896), (13, 1959920), (16, 1592435), (20, 1273948), (26, 979960), (40, 636974), (52, 489980), (65, 391984), (80, 318487), (104, 244990), (130, 195992), (208, 122495), (260, 97996), (520, 48998), (1040, 24499)]