996988840

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{43651}}^1$

素因数の和:44233

約数の個数: 32

約数和(自身を含む): 2247204960

約数和(自身を除く): 1250216120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 2284, 2855, 4568, 5710, 11420, 22840, 43651, 87302, 174604, 218255, 349208, 436510, 873020, 1746040, 24924721, 49849442, 99698884, 124623605, 199397768, 249247210, 498494420, 996988840]

約数ペア:

[(1, 996988840), (2, 498494420), (4, 249247210), (5, 199397768), (8, 124623605), (10, 99698884), (20, 49849442), (40, 24924721), (571, 1746040), (1142, 873020), (2284, 436510), (2855, 349208), (4568, 218255), (5710, 174604), (11420, 87302), (22840, 43651)]