81947735

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 109734912

約数和(自身を除く): 27787177

約数列:

[1, 5, 17, 23, 85, 115, 167, 251, 391, 835, 1255, 1955, 2839, 3841, 4267, 5773, 14195, 19205, 21335, 28865, 41917, 65297, 98141, 209585, 326485, 490705, 712589, 964091, 3562945, 4820455, 16389547, 81947735]

約数ペア:

[(1, 81947735), (5, 16389547), (17, 4820455), (23, 3562945), (85, 964091), (115, 712589), (167, 490705), (251, 326485), (391, 209585), (835, 98141), (1255, 65297), (1955, 41917), (2839, 28865), (3841, 21335), (4267, 19205), (5773, 14195)]