2807780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 6289920

約数和(自身を除く): 3482140

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 103, 116, 145, 188, 206, 235, 290, 412, 470, 515, 580, 940, 1030, 1363, 2060, 2726, 2987, 4841, 5452, 5974, 6815, 9682, 11948, 13630, 14935, 19364, 24205, 27260, 29870, 48410, 59740, 96820, 140389, 280778, 561556, 701945, 1403890, 2807780]

約数ペア:

[(1, 2807780), (2, 1403890), (4, 701945), (5, 561556), (10, 280778), (20, 140389), (29, 96820), (47, 59740), (58, 48410), (94, 29870), (103, 27260), (116, 24205), (145, 19364), (188, 14935), (206, 13630), (235, 11948), (290, 9682), (412, 6815), (470, 5974), (515, 5452), (580, 4841), (940, 2987), (1030, 2726), (1363, 2060)]