79987700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{4733}}^1$

素因数の和:4773

約数の個数: 54

約数和(自身を含む): 187991874

約数和(自身を除く): 108004174

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1300, 1690, 3380, 4225, 4733, 8450, 9466, 16900, 18932, 23665, 47330, 61529, 94660, 118325, 123058, 236650, 246116, 307645, 473300, 615290, 799877, 1230580, 1538225, 1599754, 3076450, 3199508, 3999385, 6152900, 7998770, 15997540, 19996925, 39993850, 79987700]

約数ペア:

[(1, 79987700), (2, 39993850), (4, 19996925), (5, 15997540), (10, 7998770), (13, 6152900), (20, 3999385), (25, 3199508), (26, 3076450), (50, 1599754), (52, 1538225), (65, 1230580), (100, 799877), (130, 615290), (169, 473300), (260, 307645), (325, 246116), (338, 236650), (650, 123058), (676, 118325), (845, 94660), (1300, 61529), (1690, 47330), (3380, 23665), (4225, 18932), (4733, 16900), (8450, 9466)]