18880210

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{23899}}^1$

素因数の和:23985

約数の個数: 16

約数和(自身を含む): 34416000

約数和(自身を除く): 15535790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 23899, 47798, 119495, 238990, 1888021, 3776042, 9440105, 18880210]

約数ペア:

[(1, 18880210), (2, 9440105), (5, 3776042), (10, 1888021), (79, 238990), (158, 119495), (395, 47798), (790, 23899)]