87780280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{229}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 232999200

約数和(自身を除く): 145218920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 229, 259, 280, 296, 370, 458, 518, 740, 916, 1036, 1145, 1295, 1369, 1480, 1603, 1832, 2072, 2290, 2590, 2738, 3206, 4580, 5180, 5476, 6412, 6845, 8015, 8473, 9160, 9583, 10360, 10952, 12824, 13690, 16030, 16946, 19166, 27380, 32060, 33892, 38332, 42365, 47915, 54760, 59311, 64120, 67784, 76664, 84730, 95830, 118622, 169460, 191660, 237244, 296555, 313501, 338920, 383320, 474488, 593110, 627002, 1186220, 1254004, 1567505, 2194507, 2372440, 2508008, 3135010, 4389014, 6270020, 8778028, 10972535, 12540040, 17556056, 21945070, 43890140, 87780280]

約数ペア:

[(1, 87780280), (2, 43890140), (4, 21945070), (5, 17556056), (7, 12540040), (8, 10972535), (10, 8778028), (14, 6270020), (20, 4389014), (28, 3135010), (35, 2508008), (37, 2372440), (40, 2194507), (56, 1567505), (70, 1254004), (74, 1186220), (140, 627002), (148, 593110), (185, 474488), (229, 383320), (259, 338920), (280, 313501), (296, 296555), (370, 237244), (458, 191660), (518, 169460), (740, 118622), (916, 95830), (1036, 84730), (1145, 76664), (1295, 67784), (1369, 64120), (1480, 59311), (1603, 54760), (1832, 47915), (2072, 42365), (2290, 38332), (2590, 33892), (2738, 32060), (3206, 27380), (4580, 19166), (5180, 16946), (5476, 16030), (6412, 13690), (6845, 12824), (8015, 10952), (8473, 10360), (9160, 9583)]