99721385

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1\times {\mathrm{809}}^1$

素因数の和:1180

約数の個数: 16

約数和(自身を含む): 121597200

約数和(自身を除く): 21875815

約数列:

[1, 5, 89, 277, 445, 809, 1385, 4045, 24653, 72001, 123265, 224093, 360005, 1120465, 19944277, 99721385]

約数ペア:

[(1, 99721385), (5, 19944277), (89, 1120465), (277, 360005), (445, 224093), (809, 123265), (1385, 72001), (4045, 24653)]