280656610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{2339}}^1$

素因数の和:2443

約数の個数: 48

約数和(自身を含む): 554973120

約数和(自身を除く): 274316510

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 169, 338, 355, 710, 845, 923, 1690, 1846, 2339, 4615, 4678, 9230, 11695, 11999, 23390, 23998, 30407, 59995, 60814, 119990, 152035, 166069, 304070, 332138, 395291, 790582, 830345, 1660690, 1976455, 2158897, 3952910, 4317794, 10794485, 21588970, 28065661, 56131322, 140328305, 280656610]

約数ペア:

[(1, 280656610), (2, 140328305), (5, 56131322), (10, 28065661), (13, 21588970), (26, 10794485), (65, 4317794), (71, 3952910), (130, 2158897), (142, 1976455), (169, 1660690), (338, 830345), (355, 790582), (710, 395291), (845, 332138), (923, 304070), (1690, 166069), (1846, 152035), (2339, 119990), (4615, 60814), (4678, 59995), (9230, 30407), (11695, 23998), (11999, 23390)]