1285102790

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1272379}}^1$

素因数の和:1272487

約数の個数: 16

約数和(自身を含む): 2336089680

約数和(自身を除く): 1050986890

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 1272379, 2544758, 6361895, 12723790, 128510279, 257020558, 642551395, 1285102790]

約数ペア:

[(1, 1285102790), (2, 642551395), (5, 257020558), (10, 128510279), (101, 12723790), (202, 6361895), (505, 2544758), (1010, 1272379)]