51399725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1777}}^1$

素因数の和:1889

約数の個数: 24

約数和(自身を含む): 69448680

約数和(自身を除く): 18048955

約数列:

[1, 5, 13, 25, 65, 89, 325, 445, 1157, 1777, 2225, 5785, 8885, 23101, 28925, 44425, 115505, 158153, 577525, 790765, 2055989, 3953825, 10279945, 51399725]

約数ペア:

[(1, 51399725), (5, 10279945), (13, 3953825), (25, 2055989), (65, 790765), (89, 577525), (325, 158153), (445, 115505), (1157, 44425), (1777, 28925), (2225, 23101), (5785, 8885)]