90201380

素因数分解:

$2^2\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{2521}}^1$

素因数の和:4319

約数の個数: 24

約数和(自身を含む): 189603960

約数和(自身を除く): 99402580

約数列:

[1, 2, 4, 5, 10, 20, 1789, 2521, 3578, 5042, 7156, 8945, 10084, 12605, 17890, 25210, 35780, 50420, 4510069, 9020138, 18040276, 22550345, 45100690, 90201380]

約数ペア:

[(1, 90201380), (2, 45100690), (4, 22550345), (5, 18040276), (10, 9020138), (20, 4510069), (1789, 50420), (2521, 35780), (3578, 25210), (5042, 17890), (7156, 12605), (8945, 10084)]