28042640

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2099}}^1$

素因数の和:2279

約数の個数: 40

約数和(自身を含む): 65620800

約数和(自身を除く): 37578160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2099, 2672, 3340, 4198, 6680, 8396, 10495, 13360, 16792, 20990, 33584, 41980, 83960, 167920, 350533, 701066, 1402132, 1752665, 2804264, 3505330, 5608528, 7010660, 14021320, 28042640]

約数ペア:

[(1, 28042640), (2, 14021320), (4, 7010660), (5, 5608528), (8, 3505330), (10, 2804264), (16, 1752665), (20, 1402132), (40, 701066), (80, 350533), (167, 167920), (334, 83960), (668, 41980), (835, 33584), (1336, 20990), (1670, 16792), (2099, 13360), (2672, 10495), (3340, 8396), (4198, 6680)]