206077620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{490661}}^1$

素因数の和:490680

約数の個数: 48

約数和(自身を含む): 659449728

約数和(自身を除く): 453372108

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, 490661, 981322, 1471983, 1962644, 2453305, 2943966, 3434627, 4906610, 5887932, 6869254, 7359915, 9813220, 10303881, 13738508, 14719830, 17173135, 20607762, 29439660, 34346270, 41215524, 51519405, 68692540, 103038810, 206077620]

約数ペア:

[(1, 206077620), (2, 103038810), (3, 68692540), (4, 51519405), (5, 41215524), (6, 34346270), (7, 29439660), (10, 20607762), (12, 17173135), (14, 14719830), (15, 13738508), (20, 10303881), (21, 9813220), (28, 7359915), (30, 6869254), (35, 5887932), (42, 4906610), (60, 3434627), (70, 2943966), (84, 2453305), (105, 1962644), (140, 1471983), (210, 981322), (420, 490661)]