137631640

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{9859}}^1$

素因数の和:10219

約数の個数: 32

約数和(自身を含む): 310590000

約数和(自身を除く): 172958360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 9859, 13960, 19718, 39436, 49295, 78872, 98590, 197180, 394360, 3440791, 6881582, 13763164, 17203955, 27526328, 34407910, 68815820, 137631640]

約数ペア:

[(1, 137631640), (2, 68815820), (4, 34407910), (5, 27526328), (8, 17203955), (10, 13763164), (20, 6881582), (40, 3440791), (349, 394360), (698, 197180), (1396, 98590), (1745, 78872), (2792, 49295), (3490, 39436), (6980, 19718), (9859, 13960)]