87798910

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 160496640

約数和(自身を除く): 72697730

約数列:

[1, 2, 5, 10, 127, 254, 257, 269, 514, 538, 635, 1270, 1285, 1345, 2570, 2690, 32639, 34163, 65278, 68326, 69133, 138266, 163195, 170815, 326390, 341630, 345665, 691330, 8779891, 17559782, 43899455, 87798910]

約数ペア:

[(1, 87798910), (2, 43899455), (5, 17559782), (10, 8779891), (127, 691330), (254, 345665), (257, 341630), (269, 326390), (514, 170815), (538, 163195), (635, 138266), (1270, 69133), (1285, 68326), (1345, 65278), (2570, 34163), (2690, 32639)]