68312720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{613}}^1$

素因数の和:832

約数の個数: 80

約数和(自身を含む): 182726400

約数和(自身を除く): 114413680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 613, 796, 995, 1226, 1393, 1592, 1990, 2452, 2786, 3065, 3184, 3980, 4291, 4904, 5572, 6130, 6965, 7960, 8582, 9808, 11144, 12260, 13930, 15920, 17164, 21455, 22288, 24520, 27860, 34328, 42910, 49040, 55720, 68656, 85820, 111440, 121987, 171640, 243974, 343280, 487948, 609935, 853909, 975896, 1219870, 1707818, 1951792, 2439740, 3415636, 4269545, 4879480, 6831272, 8539090, 9758960, 13662544, 17078180, 34156360, 68312720]

約数ペア:

[(1, 68312720), (2, 34156360), (4, 17078180), (5, 13662544), (7, 9758960), (8, 8539090), (10, 6831272), (14, 4879480), (16, 4269545), (20, 3415636), (28, 2439740), (35, 1951792), (40, 1707818), (56, 1219870), (70, 975896), (80, 853909), (112, 609935), (140, 487948), (199, 343280), (280, 243974), (398, 171640), (560, 121987), (613, 111440), (796, 85820), (995, 68656), (1226, 55720), (1393, 49040), (1592, 42910), (1990, 34328), (2452, 27860), (2786, 24520), (3065, 22288), (3184, 21455), (3980, 17164), (4291, 15920), (4904, 13930), (5572, 12260), (6130, 11144), (6965, 9808), (7960, 8582)]