109800920

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{11987}}^1$

素因数の和:12227

約数の個数: 32

約数和(自身を含む): 248151600

約数和(自身を除く): 138350680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 11987, 23974, 47948, 59935, 95896, 119870, 239740, 479480, 2745023, 5490046, 10980092, 13725115, 21960184, 27450230, 54900460, 109800920]

約数ペア:

[(1, 109800920), (2, 54900460), (4, 27450230), (5, 21960184), (8, 13725115), (10, 10980092), (20, 5490046), (40, 2745023), (229, 479480), (458, 239740), (916, 119870), (1145, 95896), (1832, 59935), (2290, 47948), (4580, 23974), (9160, 11987)]