121500000080

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{179119}}^1$

素因数の和:179332

約数の個数: 80

約数和(自身を含む): 289185657600

約数和(自身を除く): 167685657520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 139, 244, 278, 305, 488, 556, 610, 695, 976, 1112, 1220, 1390, 2224, 2440, 2780, 4880, 5560, 8479, 11120, 16958, 33916, 42395, 67832, 84790, 135664, 169580, 179119, 339160, 358238, 678320, 716476, 895595, 1432952, 1791190, 2865904, 3582380, 7164760, 10926259, 14329520, 21852518, 24897541, 43705036, 49795082, 54631295, 87410072, 99590164, 109262590, 124487705, 174820144, 199180328, 218525180, 248975410, 398360656, 437050360, 497950820, 874100720, 995901640, 1518750001, 1991803280, 3037500002, 6075000004, 7593750005, 12150000008, 15187500010, 24300000016, 30375000020, 60750000040, 121500000080]

約数ペア:

[(1, 121500000080), (2, 60750000040), (4, 30375000020), (5, 24300000016), (8, 15187500010), (10, 12150000008), (16, 7593750005), (20, 6075000004), (40, 3037500002), (61, 1991803280), (80, 1518750001), (122, 995901640), (139, 874100720), (244, 497950820), (278, 437050360), (305, 398360656), (488, 248975410), (556, 218525180), (610, 199180328), (695, 174820144), (976, 124487705), (1112, 109262590), (1220, 99590164), (1390, 87410072), (2224, 54631295), (2440, 49795082), (2780, 43705036), (4880, 24897541), (5560, 21852518), (8479, 14329520), (11120, 10926259), (16958, 7164760), (33916, 3582380), (42395, 2865904), (67832, 1791190), (84790, 1432952), (135664, 895595), (169580, 716476), (179119, 678320), (339160, 358238)]