13289575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 17964128

約数和(自身を除く): 4674553

約数列:

[1, 5, 13, 25, 65, 103, 325, 397, 515, 1339, 1985, 2575, 5161, 6695, 9925, 25805, 33475, 40891, 129025, 204455, 531583, 1022275, 2657915, 13289575]

約数ペア:

[(1, 13289575), (5, 2657915), (13, 1022275), (25, 531583), (65, 204455), (103, 129025), (325, 40891), (397, 33475), (515, 25805), (1339, 9925), (1985, 6695), (2575, 5161)]