81340415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{15077}}^1$

素因数の和:15178

約数の個数: 16

約数和(自身を含む): 106390368

約数和(自身を除く): 25049953

約数列:

[1, 5, 13, 65, 83, 415, 1079, 5395, 15077, 75385, 196001, 980005, 1251391, 6256955, 16268083, 81340415]

約数ペア:

[(1, 81340415), (5, 16268083), (13, 6256955), (65, 1251391), (83, 980005), (415, 196001), (1079, 75385), (5395, 15077)]