8717680

素因数分解:

$2^4\times 5^1\times {\mathrm{108971}}^1$

素因数の和:108984

約数の個数: 20

約数和(自身を含む): 20268792

約数和(自身を除く): 11551112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 108971, 217942, 435884, 544855, 871768, 1089710, 1743536, 2179420, 4358840, 8717680]

約数ペア:

[(1, 8717680), (2, 4358840), (4, 2179420), (5, 1743536), (8, 1089710), (10, 871768), (16, 544855), (20, 435884), (40, 217942), (80, 108971)]