213268020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{507781}}^1$

素因数の和:507800

約数の個数: 48

約数和(自身を含む): 682459008

約数和(自身を除く): 469190988

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, 507781, 1015562, 1523343, 2031124, 2538905, 3046686, 3554467, 5077810, 6093372, 7108934, 7616715, 10155620, 10663401, 14217868, 15233430, 17772335, 21326802, 30466860, 35544670, 42653604, 53317005, 71089340, 106634010, 213268020]

約数ペア:

[(1, 213268020), (2, 106634010), (3, 71089340), (4, 53317005), (5, 42653604), (6, 35544670), (7, 30466860), (10, 21326802), (12, 17772335), (14, 15233430), (15, 14217868), (20, 10663401), (21, 10155620), (28, 7616715), (30, 7108934), (35, 6093372), (42, 5077810), (60, 3554467), (70, 3046686), (84, 2538905), (105, 2031124), (140, 1523343), (210, 1015562), (420, 507781)]