8164840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 19388160

約数和(自身を除く): 11223320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 101, 172, 188, 202, 215, 235, 344, 376, 404, 430, 470, 505, 808, 860, 940, 1010, 1720, 1880, 2020, 2021, 4040, 4042, 4343, 4747, 8084, 8686, 9494, 10105, 16168, 17372, 18988, 20210, 21715, 23735, 34744, 37976, 40420, 43430, 47470, 80840, 86860, 94940, 173720, 189880, 204121, 408242, 816484, 1020605, 1632968, 2041210, 4082420, 8164840]

約数ペア:

[(1, 8164840), (2, 4082420), (4, 2041210), (5, 1632968), (8, 1020605), (10, 816484), (20, 408242), (40, 204121), (43, 189880), (47, 173720), (86, 94940), (94, 86860), (101, 80840), (172, 47470), (188, 43430), (202, 40420), (215, 37976), (235, 34744), (344, 23735), (376, 21715), (404, 20210), (430, 18988), (470, 17372), (505, 16168), (808, 10105), (860, 9494), (940, 8686), (1010, 8084), (1720, 4747), (1880, 4343), (2020, 4042), (2021, 4040)]