79420270

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{1999}}^1$

素因数の和:2172

約数の個数: 32

約数和(自身を含む): 149040000

約数和(自身を除く): 69619730

約数列:

[1, 2, 5, 10, 29, 58, 137, 145, 274, 290, 685, 1370, 1999, 3973, 3998, 7946, 9995, 19865, 19990, 39730, 57971, 115942, 273863, 289855, 547726, 579710, 1369315, 2738630, 7942027, 15884054, 39710135, 79420270]

約数ペア:

[(1, 79420270), (2, 39710135), (5, 15884054), (10, 7942027), (29, 2738630), (58, 1369315), (137, 579710), (145, 547726), (274, 289855), (290, 273863), (685, 115942), (1370, 57971), (1999, 39730), (3973, 19990), (3998, 19865), (7946, 9995)]