20180121020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{56003}}^1$

素因数の和:56474

約数の個数: 48

約数和(自身を含む): 43468064640

約数和(自身を除く): 23287943620

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 419, 430, 838, 860, 1676, 2095, 4190, 8380, 18017, 36034, 56003, 72068, 90085, 112006, 180170, 224012, 280015, 360340, 560030, 1120060, 2408129, 4816258, 9632516, 12040645, 23465257, 24081290, 46930514, 48162580, 93861028, 117326285, 234652570, 469305140, 1009006051, 2018012102, 4036024204, 5045030255, 10090060510, 20180121020]

約数ペア:

[(1, 20180121020), (2, 10090060510), (4, 5045030255), (5, 4036024204), (10, 2018012102), (20, 1009006051), (43, 469305140), (86, 234652570), (172, 117326285), (215, 93861028), (419, 48162580), (430, 46930514), (838, 24081290), (860, 23465257), (1676, 12040645), (2095, 9632516), (4190, 4816258), (8380, 2408129), (18017, 1120060), (36034, 560030), (56003, 360340), (72068, 280015), (90085, 224012), (112006, 180170)]