238815920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2143}}^1$

素因数の和:2362

約数の個数: 80

約数和(自身を含む): 638054400

約数和(自身を除く): 399238480

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, 796, 995, 1393, 1592, 1990, 2143, 2786, 3184, 3980, 4286, 5572, 6965, 7960, 8572, 10715, 11144, 13930, 15001, 15920, 17144, 21430, 22288, 27860, 30002, 34288, 42860, 55720, 60004, 75005, 85720, 111440, 120008, 150010, 171440, 240016, 300020, 426457, 600040, 852914, 1200080, 1705828, 2132285, 2985199, 3411656, 4264570, 5970398, 6823312, 8529140, 11940796, 14925995, 17058280, 23881592, 29851990, 34116560, 47763184, 59703980, 119407960, 238815920]

約数ペア:

[(1, 238815920), (2, 119407960), (4, 59703980), (5, 47763184), (7, 34116560), (8, 29851990), (10, 23881592), (14, 17058280), (16, 14925995), (20, 11940796), (28, 8529140), (35, 6823312), (40, 5970398), (56, 4264570), (70, 3411656), (80, 2985199), (112, 2132285), (140, 1705828), (199, 1200080), (280, 852914), (398, 600040), (560, 426457), (796, 300020), (995, 240016), (1393, 171440), (1592, 150010), (1990, 120008), (2143, 111440), (2786, 85720), (3184, 75005), (3980, 60004), (4286, 55720), (5572, 42860), (6965, 34288), (7960, 30002), (8572, 27860), (10715, 22288), (11144, 21430), (13930, 17144), (15001, 15920)]