201621340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{11987}}^1$

素因数の和:12054

約数の個数: 36

約数和(自身を含む): 438545016

約数和(自身を除く): 236923676

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 8410, 11987, 16820, 23974, 47948, 59935, 119870, 239740, 347623, 695246, 1390492, 1738115, 3476230, 6952460, 10081067, 20162134, 40324268, 50405335, 100810670, 201621340]

約数ペア:

[(1, 201621340), (2, 100810670), (4, 50405335), (5, 40324268), (10, 20162134), (20, 10081067), (29, 6952460), (58, 3476230), (116, 1738115), (145, 1390492), (290, 695246), (580, 347623), (841, 239740), (1682, 119870), (3364, 59935), (4205, 47948), (8410, 23974), (11987, 16820)]