20152020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47981}}^1$

素因数の和:48000

約数の個数: 48

約数和(自身を含む): 64487808

約数和(自身を除く): 44335788

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, 47981, 95962, 143943, 191924, 239905, 287886, 335867, 479810, 575772, 671734, 719715, 959620, 1007601, 1343468, 1439430, 1679335, 2015202, 2878860, 3358670, 4030404, 5038005, 6717340, 10076010, 20152020]

約数ペア:

[(1, 20152020), (2, 10076010), (3, 6717340), (4, 5038005), (5, 4030404), (6, 3358670), (7, 2878860), (10, 2015202), (12, 1679335), (14, 1439430), (15, 1343468), (20, 1007601), (21, 959620), (28, 719715), (30, 671734), (35, 575772), (42, 479810), (60, 335867), (70, 287886), (84, 239905), (105, 191924), (140, 143943), (210, 95962), (420, 47981)]