20252025

素因数分解:

$3^4\times 5^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 60

約数和(自身を含む): 38305212

約数和(自身を除く): 18053187

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 73, 75, 81, 135, 137, 219, 225, 365, 405, 411, 657, 675, 685, 1095, 1233, 1825, 1971, 2025, 2055, 3285, 3425, 3699, 5475, 5913, 6165, 9855, 10001, 10275, 11097, 16425, 18495, 29565, 30003, 30825, 49275, 50005, 55485, 90009, 92475, 147825, 150015, 250025, 270027, 277425, 450045, 750075, 810081, 1350135, 2250225, 4050405, 6750675, 20252025]

約数ペア:

[(1, 20252025), (3, 6750675), (5, 4050405), (9, 2250225), (15, 1350135), (25, 810081), (27, 750075), (45, 450045), (73, 277425), (75, 270027), (81, 250025), (135, 150015), (137, 147825), (219, 92475), (225, 90009), (365, 55485), (405, 50005), (411, 49275), (657, 30825), (675, 30003), (685, 29565), (1095, 18495), (1233, 16425), (1825, 11097), (1971, 10275), (2025, 10001), (2055, 9855), (3285, 6165), (3425, 5913), (3699, 5475)]