20912360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74687}}^1$

素因数の和:74705

約数の個数: 32

約数和(自身を含む): 53775360

約数和(自身を除く): 32863000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74687, 149374, 298748, 373435, 522809, 597496, 746870, 1045618, 1493740, 2091236, 2614045, 2987480, 4182472, 5228090, 10456180, 20912360]

約数ペア:

[(1, 20912360), (2, 10456180), (4, 5228090), (5, 4182472), (7, 2987480), (8, 2614045), (10, 2091236), (14, 1493740), (20, 1045618), (28, 746870), (35, 597496), (40, 522809), (56, 373435), (70, 298748), (140, 149374), (280, 74687)]