201550020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{479881}}^1$

素因数の和:479900

約数の個数: 48

約数和(自身を含む): 644961408

約数和(自身を除く): 443411388

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, 479881, 959762, 1439643, 1919524, 2399405, 2879286, 3359167, 4798810, 5758572, 6718334, 7198215, 9597620, 10077501, 13436668, 14396430, 16795835, 20155002, 28792860, 33591670, 40310004, 50387505, 67183340, 100775010, 201550020]

約数ペア:

[(1, 201550020), (2, 100775010), (3, 67183340), (4, 50387505), (5, 40310004), (6, 33591670), (7, 28792860), (10, 20155002), (12, 16795835), (14, 14396430), (15, 13436668), (20, 10077501), (21, 9597620), (28, 7198215), (30, 6718334), (35, 5758572), (42, 4798810), (60, 3359167), (70, 2879286), (84, 2399405), (105, 1919524), (140, 1439643), (210, 959762), (420, 479881)]