81181585

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{373}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 107712000

約数和(自身を除く): 26530415

約数列:

[1, 5, 19, 29, 79, 95, 145, 373, 395, 551, 1501, 1865, 2291, 2755, 7087, 7505, 10817, 11455, 29467, 35435, 43529, 54085, 147335, 205523, 217645, 559873, 854543, 1027615, 2799365, 4272715, 16236317, 81181585]

約数ペア:

[(1, 81181585), (5, 16236317), (19, 4272715), (29, 2799365), (79, 1027615), (95, 854543), (145, 559873), (373, 217645), (395, 205523), (551, 147335), (1501, 54085), (1865, 43529), (2291, 35435), (2755, 29467), (7087, 11455), (7505, 10817)]