1239980080

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{111509}}^1$

素因数の和:111661

約数の個数: 40

約数和(自身を含む): 2903720400

約数和(自身を除く): 1663740320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 111509, 223018, 446036, 557545, 892072, 1115090, 1784144, 2230180, 4460360, 8920720, 15499751, 30999502, 61999004, 77498755, 123998008, 154997510, 247996016, 309995020, 619990040, 1239980080]

約数ペア:

[(1, 1239980080), (2, 619990040), (4, 309995020), (5, 247996016), (8, 154997510), (10, 123998008), (16, 77498755), (20, 61999004), (40, 30999502), (80, 15499751), (139, 8920720), (278, 4460360), (556, 2230180), (695, 1784144), (1112, 1115090), (1390, 892072), (2224, 557545), (2780, 446036), (5560, 223018), (11120, 111509)]