89810960

素因数分解:

$2^4\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1973}}^1$

素因数の和:2555

約数の個数: 40

約数和(自身を含む): 209283480

約数和(自身を除く): 119472520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 569, 1138, 1973, 2276, 2845, 3946, 4552, 5690, 7892, 9104, 9865, 11380, 15784, 19730, 22760, 31568, 39460, 45520, 78920, 157840, 1122637, 2245274, 4490548, 5613185, 8981096, 11226370, 17962192, 22452740, 44905480, 89810960]

約数ペア:

[(1, 89810960), (2, 44905480), (4, 22452740), (5, 17962192), (8, 11226370), (10, 8981096), (16, 5613185), (20, 4490548), (40, 2245274), (80, 1122637), (569, 157840), (1138, 78920), (1973, 45520), (2276, 39460), (2845, 31568), (3946, 22760), (4552, 19730), (5690, 15784), (7892, 11380), (9104, 9865)]