31394480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30187}}^1$

素因数の和:30213

約数の個数: 40

約数和(自身を含む): 78609552

約数和(自身を除く): 47215072

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 30187, 60374, 120748, 150935, 241496, 301870, 392431, 482992, 603740, 784862, 1207480, 1569724, 1962155, 2414960, 3139448, 3924310, 6278896, 7848620, 15697240, 31394480]

約数ペア:

[(1, 31394480), (2, 15697240), (4, 7848620), (5, 6278896), (8, 3924310), (10, 3139448), (13, 2414960), (16, 1962155), (20, 1569724), (26, 1207480), (40, 784862), (52, 603740), (65, 482992), (80, 392431), (104, 301870), (130, 241496), (208, 150935), (260, 120748), (520, 60374), (1040, 30187)]