2921420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 36

約数和(自身を含む): 6360480

約数和(自身を除く): 3439060

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1580, 1849, 3397, 3698, 6794, 7396, 9245, 13588, 16985, 18490, 33970, 36980, 67940, 146071, 292142, 584284, 730355, 1460710, 2921420]

約数ペア:

[(1, 2921420), (2, 1460710), (4, 730355), (5, 584284), (10, 292142), (20, 146071), (43, 67940), (79, 36980), (86, 33970), (158, 18490), (172, 16985), (215, 13588), (316, 9245), (395, 7396), (430, 6794), (790, 3698), (860, 3397), (1580, 1849)]