128031472

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{77689}}^1$

素因数の和:77800

約数の個数: 20

約数和(自身を含む): 250472560

約数和(自身を除く): 122441088

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 77689, 155378, 310756, 621512, 1243024, 8001967, 16003934, 32007868, 64015736, 128031472]

約数ペア:

[(1, 128031472), (2, 64015736), (4, 32007868), (8, 16003934), (16, 8001967), (103, 1243024), (206, 621512), (412, 310756), (824, 155378), (1648, 77689)]