204420380

素因数分解:

$2^2\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{5939}}^1$

素因数の和:7669

約数の個数: 24

約数和(自身を含む): 429604560

約数和(自身を除く): 225184180

約数列:

[1, 2, 4, 5, 10, 20, 1721, 3442, 5939, 6884, 8605, 11878, 17210, 23756, 29695, 34420, 59390, 118780, 10221019, 20442038, 40884076, 51105095, 102210190, 204420380]

約数ペア:

[(1, 204420380), (2, 102210190), (4, 51105095), (5, 40884076), (10, 20442038), (20, 10221019), (1721, 118780), (3442, 59390), (5939, 34420), (6884, 29695), (8605, 23756), (11878, 17210)]