40372390

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{9871}}^1$

素因数の和:10287

約数の個数: 16

約数和(自身を含む): 72855360

約数和(自身を除く): 32482970

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 9871, 19742, 49355, 98710, 4037239, 8074478, 20186195, 40372390]

約数ペア:

[(1, 40372390), (2, 20186195), (5, 8074478), (10, 4037239), (409, 98710), (818, 49355), (2045, 19742), (4090, 9871)]