64384780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{463}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 143821440

約数和(自身を除く): 79436660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 409, 463, 818, 926, 1636, 1852, 2045, 2315, 4090, 4630, 6953, 7871, 8180, 9260, 13906, 15742, 27812, 31484, 34765, 39355, 69530, 78710, 139060, 157420, 189367, 378734, 757468, 946835, 1893670, 3219239, 3787340, 6438478, 12876956, 16096195, 32192390, 64384780]

約数ペア:

[(1, 64384780), (2, 32192390), (4, 16096195), (5, 12876956), (10, 6438478), (17, 3787340), (20, 3219239), (34, 1893670), (68, 946835), (85, 757468), (170, 378734), (340, 189367), (409, 157420), (463, 139060), (818, 78710), (926, 69530), (1636, 39355), (1852, 34765), (2045, 31484), (2315, 27812), (4090, 15742), (4630, 13906), (6953, 9260), (7871, 8180)]