28026640

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1571}}^1$

素因数の和:1807

約数の個数: 40

約数和(自身を含む): 65495808

約数和(自身を除く): 37469168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1571, 1784, 2230, 3142, 3568, 4460, 6284, 7855, 8920, 12568, 15710, 17840, 25136, 31420, 62840, 125680, 350333, 700666, 1401332, 1751665, 2802664, 3503330, 5605328, 7006660, 14013320, 28026640]

約数ペア:

[(1, 28026640), (2, 14013320), (4, 7006660), (5, 5605328), (8, 3503330), (10, 2802664), (16, 1751665), (20, 1401332), (40, 700666), (80, 350333), (223, 125680), (446, 62840), (892, 31420), (1115, 25136), (1571, 17840), (1784, 15710), (2230, 12568), (3142, 8920), (3568, 7855), (4460, 6284)]