18058820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69457}}^1$

素因数の和:69479

約数の個数: 24

約数和(自身を含む): 40841304

約数和(自身を除く): 22782484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 69457, 138914, 277828, 347285, 694570, 902941, 1389140, 1805882, 3611764, 4514705, 9029410, 18058820]

約数ペア:

[(1, 18058820), (2, 9029410), (4, 4514705), (5, 3611764), (10, 1805882), (13, 1389140), (20, 902941), (26, 694570), (52, 347285), (65, 277828), (130, 138914), (260, 69457)]