8812020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20981}}^1$

素因数の和:21000

約数の個数: 48

約数和(自身を含む): 28199808

約数和(自身を除く): 19387788

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, 20981, 41962, 62943, 83924, 104905, 125886, 146867, 209810, 251772, 293734, 314715, 419620, 440601, 587468, 629430, 734335, 881202, 1258860, 1468670, 1762404, 2203005, 2937340, 4406010, 8812020]

約数ペア:

[(1, 8812020), (2, 4406010), (3, 2937340), (4, 2203005), (5, 1762404), (6, 1468670), (7, 1258860), (10, 881202), (12, 734335), (14, 629430), (15, 587468), (20, 440601), (21, 419620), (28, 314715), (30, 293734), (35, 251772), (42, 209810), (60, 146867), (70, 125886), (84, 104905), (105, 83924), (140, 62943), (210, 41962), (420, 20981)]