81066025

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 103118400

約数和(自身を除く): 22052375

約数列:

[1, 5, 25, 71, 109, 355, 419, 545, 1775, 2095, 2725, 7739, 10475, 29749, 38695, 45671, 148745, 193475, 228355, 743725, 1141775, 3242641, 16213205, 81066025]

約数ペア:

[(1, 81066025), (5, 16213205), (25, 3242641), (71, 1141775), (109, 743725), (355, 228355), (419, 193475), (545, 148745), (1775, 45671), (2095, 38695), (2725, 29749), (7739, 10475)]