81802960

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9049}}^1$

素因数の和:9175

約数の個数: 40

約数和(自身を含む): 191896200

約数和(自身を除く): 110093240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 9049, 18098, 36196, 45245, 72392, 90490, 144784, 180980, 361960, 723920, 1022537, 2045074, 4090148, 5112685, 8180296, 10225370, 16360592, 20450740, 40901480, 81802960]

約数ペア:

[(1, 81802960), (2, 40901480), (4, 20450740), (5, 16360592), (8, 10225370), (10, 8180296), (16, 5112685), (20, 4090148), (40, 2045074), (80, 1022537), (113, 723920), (226, 361960), (452, 180980), (565, 144784), (904, 90490), (1130, 72392), (1808, 45245), (2260, 36196), (4520, 18098), (9040, 9049)]