2018800120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{11621}}^1$

素因数の和:11776

約数の個数: 64

約数和(自身を含む): 4694358240

約数和(自身を除く): 2675558120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 172, 202, 215, 344, 404, 430, 505, 808, 860, 1010, 1720, 2020, 4040, 4343, 8686, 11621, 17372, 21715, 23242, 34744, 43430, 46484, 58105, 86860, 92968, 116210, 173720, 232420, 464840, 499703, 999406, 1173721, 1998812, 2347442, 2498515, 3997624, 4694884, 4997030, 5868605, 9389768, 9994060, 11737210, 19988120, 23474420, 46948840, 50470003, 100940006, 201880012, 252350015, 403760024, 504700030, 1009400060, 2018800120]

約数ペア:

[(1, 2018800120), (2, 1009400060), (4, 504700030), (5, 403760024), (8, 252350015), (10, 201880012), (20, 100940006), (40, 50470003), (43, 46948840), (86, 23474420), (101, 19988120), (172, 11737210), (202, 9994060), (215, 9389768), (344, 5868605), (404, 4997030), (430, 4694884), (505, 3997624), (808, 2498515), (860, 2347442), (1010, 1998812), (1720, 1173721), (2020, 999406), (4040, 499703), (4343, 464840), (8686, 232420), (11621, 173720), (17372, 116210), (21715, 92968), (23242, 86860), (34744, 58105), (43430, 46484)]