277620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{661}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 889728

約数和(自身を除く): 612108

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, 661, 1322, 1983, 2644, 3305, 3966, 4627, 6610, 7932, 9254, 9915, 13220, 13881, 18508, 19830, 23135, 27762, 39660, 46270, 55524, 69405, 92540, 138810, 277620]

約数ペア:

[(1, 277620), (2, 138810), (3, 92540), (4, 69405), (5, 55524), (6, 46270), (7, 39660), (10, 27762), (12, 23135), (14, 19830), (15, 18508), (20, 13881), (21, 13220), (28, 9915), (30, 9254), (35, 7932), (42, 6610), (60, 4627), (70, 3966), (84, 3305), (105, 2644), (140, 1983), (210, 1322), (420, 661)]