201816380

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{42221}}^1$

素因数の和:42469

約数の個数: 24

約数和(自身を含む): 425597760

約数和(自身を除く): 223781380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 42221, 84442, 168884, 211105, 422210, 844420, 10090819, 20181638, 40363276, 50454095, 100908190, 201816380]

約数ペア:

[(1, 201816380), (2, 100908190), (4, 50454095), (5, 40363276), (10, 20181638), (20, 10090819), (239, 844420), (478, 422210), (956, 211105), (1195, 168884), (2390, 84442), (4780, 42221)]