90405560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{322877}}^1$

素因数の和:322895

約数の個数: 32

約数和(自身を含む): 232472160

約数和(自身を除く): 142066600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 322877, 645754, 1291508, 1614385, 2260139, 2583016, 3228770, 4520278, 6457540, 9040556, 11300695, 12915080, 18081112, 22601390, 45202780, 90405560]

約数ペア:

[(1, 90405560), (2, 45202780), (4, 22601390), (5, 18081112), (7, 12915080), (8, 11300695), (10, 9040556), (14, 6457540), (20, 4520278), (28, 3228770), (35, 2583016), (40, 2260139), (56, 1614385), (70, 1291508), (140, 645754), (280, 322877)]