68637740

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{13049}}^1$

素因数の和:13321

約数の個数: 24

約数和(自身を含む): 144698400

約数和(自身を除く): 76060660

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 13049, 26098, 52196, 65245, 130490, 260980, 3431887, 6863774, 13727548, 17159435, 34318870, 68637740]

約数ペア:

[(1, 68637740), (2, 34318870), (4, 17159435), (5, 13727548), (10, 6863774), (20, 3431887), (263, 260980), (526, 130490), (1052, 65245), (1315, 52196), (2630, 26098), (5260, 13049)]