30140420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 65596608

約数和(自身を除く): 35456188

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 101, 172, 202, 215, 347, 404, 430, 505, 694, 860, 1010, 1388, 1735, 2020, 3470, 4343, 6940, 8686, 14921, 17372, 21715, 29842, 35047, 43430, 59684, 70094, 74605, 86860, 140188, 149210, 175235, 298420, 350470, 700940, 1507021, 3014042, 6028084, 7535105, 15070210, 30140420]

約数ペア:

[(1, 30140420), (2, 15070210), (4, 7535105), (5, 6028084), (10, 3014042), (20, 1507021), (43, 700940), (86, 350470), (101, 298420), (172, 175235), (202, 149210), (215, 140188), (347, 86860), (404, 74605), (430, 70094), (505, 59684), (694, 43430), (860, 35047), (1010, 29842), (1388, 21715), (1735, 17372), (2020, 14921), (3470, 8686), (4343, 6940)]