205965680

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:666

約数の個数: 80

約数和(自身を含む): 496173600

約数和(自身を除く): 290207920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 149, 185, 296, 298, 370, 467, 592, 596, 740, 745, 934, 1192, 1480, 1490, 1868, 2335, 2384, 2960, 2980, 3736, 4670, 5513, 5960, 7472, 9340, 11026, 11920, 17279, 18680, 22052, 27565, 34558, 37360, 44104, 55130, 69116, 69583, 86395, 88208, 110260, 138232, 139166, 172790, 220520, 276464, 278332, 345580, 347915, 441040, 556664, 691160, 695830, 1113328, 1382320, 1391660, 2574571, 2783320, 5149142, 5566640, 10298284, 12872855, 20596568, 25745710, 41193136, 51491420, 102982840, 205965680]

約数ペア:

[(1, 205965680), (2, 102982840), (4, 51491420), (5, 41193136), (8, 25745710), (10, 20596568), (16, 12872855), (20, 10298284), (37, 5566640), (40, 5149142), (74, 2783320), (80, 2574571), (148, 1391660), (149, 1382320), (185, 1113328), (296, 695830), (298, 691160), (370, 556664), (467, 441040), (592, 347915), (596, 345580), (740, 278332), (745, 276464), (934, 220520), (1192, 172790), (1480, 139166), (1490, 138232), (1868, 110260), (2335, 88208), (2384, 86395), (2960, 69583), (2980, 69116), (3736, 55130), (4670, 44104), (5513, 37360), (5960, 34558), (7472, 27565), (9340, 22052), (11026, 18680), (11920, 17279)]