400291210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{11701}}^1$

素因数の和:12030

約数の個数: 32

約数和(自身を含む): 788621184

約数和(自身を除く): 388329974

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 311, 622, 1555, 3110, 3421, 6842, 11701, 17105, 23402, 34210, 58505, 117010, 128711, 257422, 643555, 1287110, 3639011, 7278022, 18195055, 36390110, 40029121, 80058242, 200145605, 400291210]

約数ペア:

[(1, 400291210), (2, 200145605), (5, 80058242), (10, 40029121), (11, 36390110), (22, 18195055), (55, 7278022), (110, 3639011), (311, 1287110), (622, 643555), (1555, 257422), (3110, 128711), (3421, 117010), (6842, 58505), (11701, 34210), (17105, 23402)]