12689480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18661}}^1$

素因数の和:18689

約数の個数: 32

約数和(自身を含む): 30232440

約数和(自身を除く): 17542960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 18661, 37322, 74644, 93305, 149288, 186610, 317237, 373220, 634474, 746440, 1268948, 1586185, 2537896, 3172370, 6344740, 12689480]

約数ペア:

[(1, 12689480), (2, 6344740), (4, 3172370), (5, 2537896), (8, 1586185), (10, 1268948), (17, 746440), (20, 634474), (34, 373220), (40, 317237), (68, 186610), (85, 149288), (136, 93305), (170, 74644), (340, 37322), (680, 18661)]