81224725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{499}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 107136000

約数和(自身を除く): 25911275

約数列:

[1, 5, 17, 25, 85, 383, 425, 499, 1915, 2495, 6511, 8483, 9575, 12475, 32555, 42415, 162775, 191117, 212075, 955585, 3248989, 4777925, 16244945, 81224725]

約数ペア:

[(1, 81224725), (5, 16244945), (17, 4777925), (25, 3248989), (85, 955585), (383, 212075), (425, 191117), (499, 162775), (1915, 42415), (2495, 32555), (6511, 12475), (8483, 9575)]