30990790

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43649}}^1$

素因数の和:43727

約数の個数: 16

約数和(自身を含む): 56570400

約数和(自身を除く): 25579610

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 43649, 87298, 218245, 436490, 3099079, 6198158, 15495395, 30990790]

約数ペア:

[(1, 30990790), (2, 15495395), (5, 6198158), (10, 3099079), (71, 436490), (142, 218245), (355, 87298), (710, 43649)]