8912140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 20160000

約数和(自身を除く): 11247860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 499, 893, 940, 998, 1786, 1996, 2495, 3572, 4465, 4990, 8930, 9481, 9980, 17860, 18962, 23453, 37924, 46906, 47405, 93812, 94810, 117265, 189620, 234530, 445607, 469060, 891214, 1782428, 2228035, 4456070, 8912140]

約数ペア:

[(1, 8912140), (2, 4456070), (4, 2228035), (5, 1782428), (10, 891214), (19, 469060), (20, 445607), (38, 234530), (47, 189620), (76, 117265), (94, 94810), (95, 93812), (188, 47405), (190, 46906), (235, 37924), (380, 23453), (470, 18962), (499, 17860), (893, 9980), (940, 9481), (998, 8930), (1786, 4990), (1996, 4465), (2495, 3572)]