779034440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{11047}}^1$

素因数の和:11142

約数の個数: 64

約数和(自身を含む): 1837503360

約数和(自身を除く): 1058468920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 820, 860, 1640, 1720, 1763, 3526, 7052, 8815, 11047, 14104, 17630, 22094, 35260, 44188, 55235, 70520, 88376, 110470, 220940, 441880, 452927, 475021, 905854, 950042, 1811708, 1900084, 2264635, 2375105, 3623416, 3800168, 4529270, 4750210, 9058540, 9500420, 18117080, 19000840, 19475861, 38951722, 77903444, 97379305, 155806888, 194758610, 389517220, 779034440]

約数ペア:

[(1, 779034440), (2, 389517220), (4, 194758610), (5, 155806888), (8, 97379305), (10, 77903444), (20, 38951722), (40, 19475861), (41, 19000840), (43, 18117080), (82, 9500420), (86, 9058540), (164, 4750210), (172, 4529270), (205, 3800168), (215, 3623416), (328, 2375105), (344, 2264635), (410, 1900084), (430, 1811708), (820, 950042), (860, 905854), (1640, 475021), (1720, 452927), (1763, 441880), (3526, 220940), (7052, 110470), (8815, 88376), (11047, 70520), (14104, 55235), (17630, 44188), (22094, 35260)]