20125507840

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{6637}}^1$

素因数の和:6784

約数の個数: 144

約数和(自身を含む): 50798861568

約数和(自身を除く): 30673353728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 103, 115, 128, 160, 184, 206, 230, 256, 320, 368, 412, 460, 515, 640, 736, 824, 920, 1030, 1280, 1472, 1648, 1840, 2060, 2369, 2944, 3296, 3680, 4120, 4738, 5888, 6592, 6637, 7360, 8240, 9476, 11845, 13184, 13274, 14720, 16480, 18952, 23690, 26368, 26548, 29440, 32960, 33185, 37904, 47380, 53096, 65920, 66370, 75808, 94760, 106192, 131840, 132740, 151616, 152651, 189520, 212384, 265480, 303232, 305302, 379040, 424768, 530960, 606464, 610604, 683611, 758080, 763255, 849536, 1061920, 1221208, 1367222, 1516160, 1526510, 1699072, 2123840, 2442416, 2734444, 3032320, 3053020, 3418055, 4247680, 4884832, 5468888, 6106040, 6836110, 8495360, 9769664, 10937776, 12212080, 13672220, 15723053, 19539328, 21875552, 24424160, 27344440, 31446106, 39078656, 43751104, 48848320, 54688880, 62892212, 78615265, 87502208, 97696640, 109377760, 125784424, 157230530, 175004416, 195393280, 218755520, 251568848, 314461060, 437511040, 503137696, 628922120, 875022080, 1006275392, 1257844240, 2012550784, 2515688480, 4025101568, 5031376960, 10062753920, 20125507840]

約数ペア:

[(1, 20125507840), (2, 10062753920), (4, 5031376960), (5, 4025101568), (8, 2515688480), (10, 2012550784), (16, 1257844240), (20, 1006275392), (23, 875022080), (32, 628922120), (40, 503137696), (46, 437511040), (64, 314461060), (80, 251568848), (92, 218755520), (103, 195393280), (115, 175004416), (128, 157230530), (160, 125784424), (184, 109377760), (206, 97696640), (230, 87502208), (256, 78615265), (320, 62892212), (368, 54688880), (412, 48848320), (460, 43751104), (515, 39078656), (640, 31446106), (736, 27344440), (824, 24424160), (920, 21875552), (1030, 19539328), (1280, 15723053), (1472, 13672220), (1648, 12212080), (1840, 10937776), (2060, 9769664), (2369, 8495360), (2944, 6836110), (3296, 6106040), (3680, 5468888), (4120, 4884832), (4738, 4247680), (5888, 3418055), (6592, 3053020), (6637, 3032320), (7360, 2734444), (8240, 2442416), (9476, 2123840), (11845, 1699072), (13184, 1526510), (13274, 1516160), (14720, 1367222), (16480, 1221208), (18952, 1061920), (23690, 849536), (26368, 763255), (26548, 758080), (29440, 683611), (32960, 610604), (33185, 606464), (37904, 530960), (47380, 424768), (53096, 379040), (65920, 305302), (66370, 303232), (75808, 265480), (94760, 212384), (106192, 189520), (131840, 152651), (132740, 151616)]