291224720

素因数分解:

$2^4\times 5^1\times {\mathrm{3640309}}^1$

素因数の和:3640322

約数の個数: 20

約数和(自身を含む): 677097660

約数和(自身を除く): 385872940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640309, 7280618, 14561236, 18201545, 29122472, 36403090, 58244944, 72806180, 145612360, 291224720]

約数ペア:

[(1, 291224720), (2, 145612360), (4, 72806180), (5, 58244944), (8, 36403090), (10, 29122472), (16, 18201545), (20, 14561236), (40, 7280618), (80, 3640309)]