20026020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47681}}^1$

素因数の和:47700

約数の個数: 48

約数和(自身を含む): 64084608

約数和(自身を除く): 44058588

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, 47681, 95362, 143043, 190724, 238405, 286086, 333767, 476810, 572172, 667534, 715215, 953620, 1001301, 1335068, 1430430, 1668835, 2002602, 2860860, 3337670, 4005204, 5006505, 6675340, 10013010, 20026020]

約数ペア:

[(1, 20026020), (2, 10013010), (3, 6675340), (4, 5006505), (5, 4005204), (6, 3337670), (7, 2860860), (10, 2002602), (12, 1668835), (14, 1430430), (15, 1335068), (20, 1001301), (21, 953620), (28, 715215), (30, 667534), (35, 572172), (42, 476810), (60, 333767), (70, 286086), (84, 238405), (105, 190724), (140, 143043), (210, 95362), (420, 47681)]