256147502

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{7643}}^1$

素因数の和:8947

約数の個数: 16

約数和(自身を含む): 414151920

約数和(自身を除く): 158004418

約数列:

[1, 2, 13, 26, 1289, 2578, 7643, 15286, 16757, 33514, 99359, 198718, 9851827, 19703654, 128073751, 256147502]

約数ペア:

[(1, 256147502), (2, 128073751), (13, 19703654), (26, 9851827), (1289, 198718), (2578, 99359), (7643, 33514), (15286, 16757)]