261238390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1171}}^1\times {\mathrm{3187}}^1$

素因数の和:4372

約数の個数: 32

約数和(自身を含む): 538032384

約数和(自身を除く): 276793994

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1171, 2342, 3187, 5855, 6374, 8197, 11710, 15935, 16394, 22309, 31870, 40985, 44618, 81970, 111545, 223090, 3731977, 7463954, 18659885, 26123839, 37319770, 52247678, 130619195, 261238390]

約数ペア:

[(1, 261238390), (2, 130619195), (5, 52247678), (7, 37319770), (10, 26123839), (14, 18659885), (35, 7463954), (70, 3731977), (1171, 223090), (2342, 111545), (3187, 81970), (5855, 44618), (6374, 40985), (8197, 31870), (11710, 22309), (15935, 16394)]