394047280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{2273}}^1$

素因数の和:2494

約数の個数: 80

約数和(自身を含む): 1004962464

約数和(自身を除く): 610915184

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 788, 880, 985, 1576, 1970, 2167, 2273, 3152, 3940, 4334, 4546, 7880, 8668, 9092, 10835, 11365, 15760, 17336, 18184, 21670, 22730, 25003, 34672, 36368, 43340, 45460, 50006, 86680, 90920, 100012, 125015, 173360, 181840, 200024, 250030, 400048, 447781, 500060, 895562, 1000120, 1791124, 2000240, 2238905, 3582248, 4477810, 4925591, 7164496, 8955620, 9851182, 17911240, 19702364, 24627955, 35822480, 39404728, 49255910, 78809456, 98511820, 197023640, 394047280]

約数ペア:

[(1, 394047280), (2, 197023640), (4, 98511820), (5, 78809456), (8, 49255910), (10, 39404728), (11, 35822480), (16, 24627955), (20, 19702364), (22, 17911240), (40, 9851182), (44, 8955620), (55, 7164496), (80, 4925591), (88, 4477810), (110, 3582248), (176, 2238905), (197, 2000240), (220, 1791124), (394, 1000120), (440, 895562), (788, 500060), (880, 447781), (985, 400048), (1576, 250030), (1970, 200024), (2167, 181840), (2273, 173360), (3152, 125015), (3940, 100012), (4334, 90920), (4546, 86680), (7880, 50006), (8668, 45460), (9092, 43340), (10835, 36368), (11365, 34672), (15760, 25003), (17336, 22730), (18184, 21670)]