645145744

素因数分解:

$2^4\times {\mathrm{9059}}^1\times {\mathrm{4451}}^1$

素因数の和:13518

約数の個数: 20

約数和(自身を含む): 1250388720

約数和(自身を除く): 605242976

約数列:

[1, 2, 4, 8, 16, 4451, 8902, 9059, 17804, 18118, 35608, 36236, 71216, 72472, 144944, 40321609, 80643218, 161286436, 322572872, 645145744]

約数ペア:

[(1, 645145744), (2, 322572872), (4, 161286436), (8, 80643218), (16, 40321609), (4451, 144944), (8902, 72472), (9059, 71216), (17804, 36236), (18118, 35608)]