31783080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 110119680

約数和(自身を除く): 78336600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 241, 280, 314, 420, 471, 482, 628, 723, 785, 840, 942, 964, 1099, 1205, 1256, 1446, 1570, 1687, 1884, 1928, 2198, 2355, 2410, 2892, 3140, 3297, 3374, 3615, 3768, 4396, 4710, 4820, 5061, 5495, 5784, 6280, 6594, 6748, 7230, 8435, 8792, 9420, 9640, 10122, 10990, 13188, 13496, 14460, 16485, 16870, 18840, 20244, 21980, 25305, 26376, 28920, 32970, 33740, 37837, 40488, 43960, 50610, 65940, 67480, 75674, 101220, 113511, 131880, 151348, 189185, 202440, 227022, 264859, 302696, 378370, 454044, 529718, 567555, 756740, 794577, 908088, 1059436, 1135110, 1324295, 1513480, 1589154, 2118872, 2270220, 2648590, 3178308, 3972885, 4540440, 5297180, 6356616, 7945770, 10594360, 15891540, 31783080]

約数ペア:

[(1, 31783080), (2, 15891540), (3, 10594360), (4, 7945770), (5, 6356616), (6, 5297180), (7, 4540440), (8, 3972885), (10, 3178308), (12, 2648590), (14, 2270220), (15, 2118872), (20, 1589154), (21, 1513480), (24, 1324295), (28, 1135110), (30, 1059436), (35, 908088), (40, 794577), (42, 756740), (56, 567555), (60, 529718), (70, 454044), (84, 378370), (105, 302696), (120, 264859), (140, 227022), (157, 202440), (168, 189185), (210, 151348), (241, 131880), (280, 113511), (314, 101220), (420, 75674), (471, 67480), (482, 65940), (628, 50610), (723, 43960), (785, 40488), (840, 37837), (942, 33740), (964, 32970), (1099, 28920), (1205, 26376), (1256, 25305), (1446, 21980), (1570, 20244), (1687, 18840), (1884, 16870), (1928, 16485), (2198, 14460), (2355, 13496), (2410, 13188), (2892, 10990), (3140, 10122), (3297, 9640), (3374, 9420), (3615, 8792), (3768, 8435), (4396, 7230), (4710, 6748), (4820, 6594), (5061, 6280), (5495, 5784)]