256787465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{1423}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 358027776

約数和(自身を除く): 101240311

約数列:

[1, 5, 11, 17, 55, 85, 187, 193, 935, 965, 1423, 2123, 3281, 7115, 10615, 15653, 16405, 24191, 36091, 78265, 120955, 180455, 266101, 274639, 1330505, 1373195, 3021029, 4668863, 15105145, 23344315, 51357493, 256787465]

約数ペア:

[(1, 256787465), (5, 51357493), (11, 23344315), (17, 15105145), (55, 4668863), (85, 3021029), (187, 1373195), (193, 1330505), (935, 274639), (965, 266101), (1423, 180455), (2123, 120955), (3281, 78265), (7115, 36091), (10615, 24191), (15653, 16405)]