1668875

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 24

約数和(自身を含む): 2283840

約数和(自身を除く): 614965

約数列:

[1, 5, 13, 25, 65, 79, 125, 169, 325, 395, 845, 1027, 1625, 1975, 4225, 5135, 9875, 13351, 21125, 25675, 66755, 128375, 333775, 1668875]

約数ペア:

[(1, 1668875), (5, 333775), (13, 128375), (25, 66755), (65, 25675), (79, 21125), (125, 13351), (169, 9875), (325, 5135), (395, 4225), (845, 1975), (1027, 1625)]