281221415

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{7691}}^1$

素因数の和:7870

約数の個数: 16

約数和(自身を含む): 345586176

約数和(自身を除く): 64364761

約数列:

[1, 5, 71, 103, 355, 515, 7313, 7691, 36565, 38455, 546061, 792173, 2730305, 3960865, 56244283, 281221415]

約数ペア:

[(1, 281221415), (5, 56244283), (71, 3960865), (103, 2730305), (355, 792173), (515, 546061), (7313, 38455), (7691, 36565)]