81788785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{74017}}^1$

素因数の和:74052

約数の個数: 16

約数和(自身を含む): 111915216

約数和(自身を除く): 30126431

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 74017, 370085, 962221, 1258289, 4811105, 6291445, 16357757, 81788785]

約数ペア:

[(1, 81788785), (5, 16357757), (13, 6291445), (17, 4811105), (65, 1258289), (85, 962221), (221, 370085), (1105, 74017)]