4082420

素因数分解:

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

素因数の和:200

約数の個数: 48

約数和(自身を含む): 9047808

約数和(自身を除く): 4965388

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 101, 172, 188, 202, 215, 235, 404, 430, 470, 505, 860, 940, 1010, 2020, 2021, 4042, 4343, 4747, 8084, 8686, 9494, 10105, 17372, 18988, 20210, 21715, 23735, 40420, 43430, 47470, 86860, 94940, 204121, 408242, 816484, 1020605, 2041210, 4082420]

約数ペア:

[(1, 4082420), (2, 2041210), (4, 1020605), (5, 816484), (10, 408242), (20, 204121), (43, 94940), (47, 86860), (86, 47470), (94, 43430), (101, 40420), (172, 23735), (188, 21715), (202, 20210), (215, 18988), (235, 17372), (404, 10105), (430, 9494), (470, 8686), (505, 8084), (860, 4747), (940, 4343), (1010, 4042), (2020, 2021)]