20051525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 27081600

約数和(自身を除く): 7030075

約数列:

[1, 5, 13, 25, 65, 103, 325, 515, 599, 1339, 2575, 2995, 6695, 7787, 14975, 33475, 38935, 61697, 194675, 308485, 802061, 1542425, 4010305, 20051525]

約数ペア:

[(1, 20051525), (5, 4010305), (13, 1542425), (25, 802061), (65, 308485), (103, 194675), (325, 61697), (515, 38935), (599, 33475), (1339, 14975), (2575, 7787), (2995, 6695)]