20906260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3617}}^1$

素因数の和:3660

約数の個数: 36

約数和(自身を含む): 46650492

約数和(自身を除く): 25744232

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3617, 5780, 7234, 14468, 18085, 36170, 61489, 72340, 122978, 245956, 307445, 614890, 1045313, 1229780, 2090626, 4181252, 5226565, 10453130, 20906260]

約数ペア:

[(1, 20906260), (2, 10453130), (4, 5226565), (5, 4181252), (10, 2090626), (17, 1229780), (20, 1045313), (34, 614890), (68, 307445), (85, 245956), (170, 122978), (289, 72340), (340, 61489), (578, 36170), (1156, 18085), (1445, 14468), (2890, 7234), (3617, 5780)]