18688490

素因数分解:

$2^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{4931}}^1$

素因数の和:5317

約数の個数: 16

約数和(自身を含む): 33734880

約数和(自身を除く): 15046390

約数列:

[1, 2, 5, 10, 379, 758, 1895, 3790, 4931, 9862, 24655, 49310, 1868849, 3737698, 9344245, 18688490]

約数ペア:

[(1, 18688490), (2, 9344245), (5, 3737698), (10, 1868849), (379, 49310), (758, 24655), (1895, 9862), (3790, 4931)]