145349780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{102359}}^1$

素因数の和:102439

約数の個数: 24

約数和(自身を含む): 309536640

約数和(自身を除く): 164186860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 102359, 204718, 409436, 511795, 1023590, 2047180, 7267489, 14534978, 29069956, 36337445, 72674890, 145349780]

約数ペア:

[(1, 145349780), (2, 72674890), (4, 36337445), (5, 29069956), (10, 14534978), (20, 7267489), (71, 2047180), (142, 1023590), (284, 511795), (355, 409436), (710, 204718), (1420, 102359)]