8581420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13841}}^1$

素因数の和:13881

約数の個数: 24

約数和(自身を含む): 18603648

約数和(自身を除く): 10022228

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 13841, 27682, 55364, 69205, 138410, 276820, 429071, 858142, 1716284, 2145355, 4290710, 8581420]

約数ペア:

[(1, 8581420), (2, 4290710), (4, 2145355), (5, 1716284), (10, 858142), (20, 429071), (31, 276820), (62, 138410), (124, 69205), (155, 55364), (310, 27682), (620, 13841)]