87909740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2281}}^1$

素因数の和:2378

約数の個数: 48

約数和(自身を含む): 193221504

約数和(自身を除く): 105311764

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1927, 2281, 3854, 4562, 7708, 9124, 9635, 11405, 19270, 22810, 38540, 45620, 93521, 107207, 187042, 214414, 374084, 428828, 467605, 536035, 935210, 1072070, 1870420, 2144140, 4395487, 8790974, 17581948, 21977435, 43954870, 87909740]

約数ペア:

[(1, 87909740), (2, 43954870), (4, 21977435), (5, 17581948), (10, 8790974), (20, 4395487), (41, 2144140), (47, 1870420), (82, 1072070), (94, 935210), (164, 536035), (188, 467605), (205, 428828), (235, 374084), (410, 214414), (470, 187042), (820, 107207), (940, 93521), (1927, 45620), (2281, 38540), (3854, 22810), (4562, 19270), (7708, 11405), (9124, 9635)]