79390040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{457}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 184995360

約数和(自身を除く): 105605320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 172, 202, 215, 344, 404, 430, 457, 505, 808, 860, 914, 1010, 1720, 1828, 2020, 2285, 3656, 4040, 4343, 4570, 8686, 9140, 17372, 18280, 19651, 21715, 34744, 39302, 43430, 46157, 78604, 86860, 92314, 98255, 157208, 173720, 184628, 196510, 230785, 369256, 393020, 461570, 786040, 923140, 1846280, 1984751, 3969502, 7939004, 9923755, 15878008, 19847510, 39695020, 79390040]

約数ペア:

[(1, 79390040), (2, 39695020), (4, 19847510), (5, 15878008), (8, 9923755), (10, 7939004), (20, 3969502), (40, 1984751), (43, 1846280), (86, 923140), (101, 786040), (172, 461570), (202, 393020), (215, 369256), (344, 230785), (404, 196510), (430, 184628), (457, 173720), (505, 157208), (808, 98255), (860, 92314), (914, 86860), (1010, 78604), (1720, 46157), (1828, 43430), (2020, 39302), (2285, 34744), (3656, 21715), (4040, 19651), (4343, 18280), (4570, 17372), (8686, 9140)]