28758860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2087}}^1$

素因数の和:2162

約数の個数: 48

約数和(自身を含む): 66298176

約数和(自身を除く): 37539316

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2087, 2756, 3445, 4174, 6890, 8348, 10435, 13780, 20870, 27131, 41740, 54262, 108524, 110611, 135655, 221222, 271310, 442444, 542620, 553055, 1106110, 1437943, 2212220, 2875886, 5751772, 7189715, 14379430, 28758860]

約数ペア:

[(1, 28758860), (2, 14379430), (4, 7189715), (5, 5751772), (10, 2875886), (13, 2212220), (20, 1437943), (26, 1106110), (52, 553055), (53, 542620), (65, 442444), (106, 271310), (130, 221222), (212, 135655), (260, 110611), (265, 108524), (530, 54262), (689, 41740), (1060, 27131), (1378, 20870), (2087, 13780), (2756, 10435), (3445, 8348), (4174, 6890)]