7981870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4723}}^1$

素因数の和:4756

約数の個数: 24

約数和(自身を含む): 15560856

約数和(自身を除く): 7578986

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 4723, 9446, 23615, 47230, 61399, 122798, 306995, 613990, 798187, 1596374, 3990935, 7981870]

約数ペア:

[(1, 7981870), (2, 3990935), (5, 1596374), (10, 798187), (13, 613990), (26, 306995), (65, 122798), (130, 61399), (169, 47230), (338, 23615), (845, 9446), (1690, 4723)]