201881390

素因数分解:

$2^1\times 5^1\times {\mathrm{2039}}^1\times {\mathrm{9901}}^1$

素因数の和:11947

約数の個数: 16

約数和(自身を含む): 363601440

約数和(自身を除く): 161720050

約数列:

[1, 2, 5, 10, 2039, 4078, 9901, 10195, 19802, 20390, 49505, 99010, 20188139, 40376278, 100940695, 201881390]

約数ペア:

[(1, 201881390), (2, 100940695), (5, 40376278), (10, 20188139), (2039, 99010), (4078, 49505), (9901, 20390), (10195, 19802)]