289014020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{203531}}^1$

素因数の和:203611

約数の個数: 24

約数和(自身を含む): 615480768

約数和(自身を除く): 326466748

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 203531, 407062, 814124, 1017655, 2035310, 4070620, 14450701, 28901402, 57802804, 72253505, 144507010, 289014020]

約数ペア:

[(1, 289014020), (2, 144507010), (4, 72253505), (5, 57802804), (10, 28901402), (20, 14450701), (71, 4070620), (142, 2035310), (284, 1017655), (355, 814124), (710, 407062), (1420, 203531)]