253661525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{599}}^1\times {\mathrm{1303}}^1$

素因数の和:1925

約数の個数: 24

約数和(自身を含む): 339561600

約数和(自身を除く): 85900075

約数列:

[1, 5, 13, 25, 65, 325, 599, 1303, 2995, 6515, 7787, 14975, 16939, 32575, 38935, 84695, 194675, 423475, 780497, 3902485, 10146461, 19512425, 50732305, 253661525]

約数ペア:

[(1, 253661525), (5, 50732305), (13, 19512425), (25, 10146461), (65, 3902485), (325, 780497), (599, 423475), (1303, 194675), (2995, 84695), (6515, 38935), (7787, 32575), (14975, 16939)]