178170740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{4111}}^1$

素因数の和:4328

約数の個数: 48

約数和(自身を含む): 410344704

約数和(自身を除く): 232173964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3940, 4111, 4334, 8222, 8668, 10835, 16444, 20555, 21670, 41110, 43340, 45221, 82220, 90442, 180884, 226105, 452210, 809867, 904420, 1619734, 3239468, 4049335, 8098670, 8908537, 16197340, 17817074, 35634148, 44542685, 89085370, 178170740]

約数ペア:

[(1, 178170740), (2, 89085370), (4, 44542685), (5, 35634148), (10, 17817074), (11, 16197340), (20, 8908537), (22, 8098670), (44, 4049335), (55, 3239468), (110, 1619734), (197, 904420), (220, 809867), (394, 452210), (788, 226105), (985, 180884), (1970, 90442), (2167, 82220), (3940, 45221), (4111, 43340), (4334, 41110), (8222, 21670), (8668, 20555), (10835, 16444)]