128974960

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{9319}}^1$

素因数の和:9505

約数の個数: 40

約数和(自身を含む): 301632480

約数和(自身を除く): 172657520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 6920, 9319, 13840, 18638, 37276, 46595, 74552, 93190, 149104, 186380, 372760, 745520, 1612187, 3224374, 6448748, 8060935, 12897496, 16121870, 25794992, 32243740, 64487480, 128974960]

約数ペア:

[(1, 128974960), (2, 64487480), (4, 32243740), (5, 25794992), (8, 16121870), (10, 12897496), (16, 8060935), (20, 6448748), (40, 3224374), (80, 1612187), (173, 745520), (346, 372760), (692, 186380), (865, 149104), (1384, 93190), (1730, 74552), (2768, 46595), (3460, 37276), (6920, 18638), (9319, 13840)]