18880990

素因数分解:

$2^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3877}}^1$

素因数の和:4371

約数の個数: 16

約数和(自身を含む): 34064352

約数和(自身を除く): 15183362

約数列:

[1, 2, 5, 10, 487, 974, 2435, 3877, 4870, 7754, 19385, 38770, 1888099, 3776198, 9440495, 18880990]

約数ペア:

[(1, 18880990), (2, 9440495), (5, 3776198), (10, 1888099), (487, 38770), (974, 19385), (2435, 7754), (3877, 4870)]