8261240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15887}}^1$

素因数の和:15911

約数の個数: 32

約数和(自身を含む): 20018880

約数和(自身を除く): 11757640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15887, 31774, 63548, 79435, 127096, 158870, 206531, 317740, 413062, 635480, 826124, 1032655, 1652248, 2065310, 4130620, 8261240]

約数ペア:

[(1, 8261240), (2, 4130620), (4, 2065310), (5, 1652248), (8, 1032655), (10, 826124), (13, 635480), (20, 413062), (26, 317740), (40, 206531), (52, 158870), (65, 127096), (104, 79435), (130, 63548), (260, 31774), (520, 15887)]