400017392

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{242729}}^1$

素因数の和:242840

約数の個数: 20

約数和(自身を含む): 782561520

約数和(自身を除く): 382544128

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 242729, 485458, 970916, 1941832, 3883664, 25001087, 50002174, 100004348, 200008696, 400017392]

約数ペア:

[(1, 400017392), (2, 200008696), (4, 100004348), (8, 50002174), (16, 25001087), (103, 3883664), (206, 1941832), (412, 970916), (824, 485458), (1648, 242729)]