8686020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20681}}^1$

素因数の和:20700

約数の個数: 48

約数和(自身を含む): 27796608

約数和(自身を除く): 19110588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 20681, 41362, 62043, 82724, 103405, 124086, 144767, 206810, 248172, 289534, 310215, 413620, 434301, 579068, 620430, 723835, 868602, 1240860, 1447670, 1737204, 2171505, 2895340, 4343010, 8686020]

約数ペア:

[(1, 8686020), (2, 4343010), (3, 2895340), (4, 2171505), (5, 1737204), (6, 1447670), (7, 1240860), (10, 868602), (12, 723835), (14, 620430), (15, 579068), (20, 434301), (21, 413620), (28, 310215), (30, 289534), (35, 248172), (42, 206810), (60, 144767), (70, 124086), (84, 103405), (105, 82724), (140, 62043), (210, 41362), (420, 20681)]