20382745

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6481}}^1$

素因数の和:6540

約数の個数: 16

約数和(自身を含む): 26602128

約数和(自身を除く): 6219383

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6481, 32405, 110177, 239797, 550885, 1198985, 4076549, 20382745]

約数ペア:

[(1, 20382745), (5, 4076549), (17, 1198985), (37, 550885), (85, 239797), (185, 110177), (629, 32405), (3145, 6481)]