388974140

素因数分解:

$2^2\times 5^1\times {\mathrm{2309}}^1\times {\mathrm{8423}}^1$

素因数の和:10741

約数の個数: 24

約数和(自身を含む): 817296480

約数和(自身を除く): 428322340

約数列:

[1, 2, 4, 5, 10, 20, 2309, 4618, 8423, 9236, 11545, 16846, 23090, 33692, 42115, 46180, 84230, 168460, 19448707, 38897414, 77794828, 97243535, 194487070, 388974140]

約数ペア:

[(1, 388974140), (2, 194487070), (4, 97243535), (5, 77794828), (10, 38897414), (20, 19448707), (2309, 168460), (4618, 84230), (8423, 46180), (9236, 42115), (11545, 33692), (16846, 23090)]