28611280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3541}}^1$

素因数の和:3655

約数の個数: 40

約数和(自身を含む): 67198824

約数和(自身を除く): 38587544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 3541, 4040, 7082, 8080, 14164, 17705, 28328, 35410, 56656, 70820, 141640, 283280, 357641, 715282, 1430564, 1788205, 2861128, 3576410, 5722256, 7152820, 14305640, 28611280]

約数ペア:

[(1, 28611280), (2, 14305640), (4, 7152820), (5, 5722256), (8, 3576410), (10, 2861128), (16, 1788205), (20, 1430564), (40, 715282), (80, 357641), (101, 283280), (202, 141640), (404, 70820), (505, 56656), (808, 35410), (1010, 28328), (1616, 17705), (2020, 14164), (3541, 8080), (4040, 7082)]