12790640

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1583}}^1$

素因数の和:1697

約数の個数: 40

約数和(自身を含む): 30051648

約数和(自身を除く): 17261008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1583, 1616, 2020, 3166, 4040, 6332, 7915, 8080, 12664, 15830, 25328, 31660, 63320, 126640, 159883, 319766, 639532, 799415, 1279064, 1598830, 2558128, 3197660, 6395320, 12790640]

約数ペア:

[(1, 12790640), (2, 6395320), (4, 3197660), (5, 2558128), (8, 1598830), (10, 1279064), (16, 799415), (20, 639532), (40, 319766), (80, 159883), (101, 126640), (202, 63320), (404, 31660), (505, 25328), (808, 15830), (1010, 12664), (1583, 8080), (1616, 7915), (2020, 6332), (3166, 4040)]