87740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 190512

約数和(自身を除く): 102772

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 107, 164, 205, 214, 410, 428, 535, 820, 1070, 2140, 4387, 8774, 17548, 21935, 43870, 87740]

約数ペア:

[(1, 87740), (2, 43870), (4, 21935), (5, 17548), (10, 8774), (20, 4387), (41, 2140), (82, 1070), (107, 820), (164, 535), (205, 428), (214, 410)]