20806887605

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{9293}}^1$

素因数の和:9446

約数の個数: 64

約数和(自身を含む): 31220702208

約数和(自身を除く): 10413814603

約数列:

[1, 5, 7, 17, 35, 53, 71, 85, 119, 265, 355, 371, 497, 595, 901, 1207, 1855, 2485, 3763, 4505, 6035, 6307, 8449, 9293, 18815, 26341, 31535, 42245, 46465, 63971, 65051, 131705, 157981, 319855, 325255, 447797, 492529, 659803, 789905, 1105867, 2238985, 2462645, 3299015, 3447703, 4618621, 5529335, 8372993, 11216651, 17238515, 23093105, 34969559, 41864965, 56083255, 58610951, 78516557, 174847795, 244786913, 293054755, 392582785, 594482503, 1223934565, 2972412515, 4161377521, 20806887605]

約数ペア:

[(1, 20806887605), (5, 4161377521), (7, 2972412515), (17, 1223934565), (35, 594482503), (53, 392582785), (71, 293054755), (85, 244786913), (119, 174847795), (265, 78516557), (355, 58610951), (371, 56083255), (497, 41864965), (595, 34969559), (901, 23093105), (1207, 17238515), (1855, 11216651), (2485, 8372993), (3763, 5529335), (4505, 4618621), (6035, 3447703), (6307, 3299015), (8449, 2462645), (9293, 2238985), (18815, 1105867), (26341, 789905), (31535, 659803), (42245, 492529), (46465, 447797), (63971, 325255), (65051, 319855), (131705, 157981)]