17824280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 25375720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 499, 760, 893, 940, 998, 1786, 1880, 1996, 2495, 3572, 3992, 4465, 4990, 7144, 8930, 9481, 9980, 17860, 18962, 19960, 23453, 35720, 37924, 46906, 47405, 75848, 93812, 94810, 117265, 187624, 189620, 234530, 379240, 445607, 469060, 891214, 938120, 1782428, 2228035, 3564856, 4456070, 8912140, 17824280]

約数ペア:

[(1, 17824280), (2, 8912140), (4, 4456070), (5, 3564856), (8, 2228035), (10, 1782428), (19, 938120), (20, 891214), (38, 469060), (40, 445607), (47, 379240), (76, 234530), (94, 189620), (95, 187624), (152, 117265), (188, 94810), (190, 93812), (235, 75848), (376, 47405), (380, 46906), (470, 37924), (499, 35720), (760, 23453), (893, 19960), (940, 18962), (998, 17860), (1786, 9980), (1880, 9481), (1996, 8930), (2495, 7144), (3572, 4990), (3992, 4465)]