17941640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4441}}^1$

素因数の和:4553

約数の個数: 32

約数和(自身を含む): 40777560

約数和(自身を除く): 22835920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4441, 8882, 17764, 22205, 35528, 44410, 88820, 177640, 448541, 897082, 1794164, 2242705, 3588328, 4485410, 8970820, 17941640]

約数ペア:

[(1, 17941640), (2, 8970820), (4, 4485410), (5, 3588328), (8, 2242705), (10, 1794164), (20, 897082), (40, 448541), (101, 177640), (202, 88820), (404, 44410), (505, 35528), (808, 22205), (1010, 17764), (2020, 8882), (4040, 4441)]