409065620

素因数分解:

$2^2\times 5^1\times {\mathrm{983}}^1\times {\mathrm{20807}}^1$

素因数の和:21799

約数の個数: 24

約数和(自身を含む): 859953024

約数和(自身を除く): 450887404

約数列:

[1, 2, 4, 5, 10, 20, 983, 1966, 3932, 4915, 9830, 19660, 20807, 41614, 83228, 104035, 208070, 416140, 20453281, 40906562, 81813124, 102266405, 204532810, 409065620]

約数ペア:

[(1, 409065620), (2, 204532810), (4, 102266405), (5, 81813124), (10, 40906562), (20, 20453281), (983, 416140), (1966, 208070), (3932, 104035), (4915, 83228), (9830, 41614), (19660, 20807)]