25464040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{457}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 65952000

約数和(自身を除く): 40487960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 457, 796, 914, 995, 1393, 1592, 1828, 1990, 2285, 2786, 3199, 3656, 3980, 4570, 5572, 6398, 6965, 7960, 9140, 11144, 12796, 13930, 15995, 18280, 25592, 27860, 31990, 55720, 63980, 90943, 127960, 181886, 363772, 454715, 636601, 727544, 909430, 1273202, 1818860, 2546404, 3183005, 3637720, 5092808, 6366010, 12732020, 25464040]

約数ペア:

[(1, 25464040), (2, 12732020), (4, 6366010), (5, 5092808), (7, 3637720), (8, 3183005), (10, 2546404), (14, 1818860), (20, 1273202), (28, 909430), (35, 727544), (40, 636601), (56, 454715), (70, 363772), (140, 181886), (199, 127960), (280, 90943), (398, 63980), (457, 55720), (796, 31990), (914, 27860), (995, 25592), (1393, 18280), (1592, 15995), (1828, 13930), (1990, 12796), (2285, 11144), (2786, 9140), (3199, 7960), (3656, 6965), (3980, 6398), (4570, 5572)]