20776025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 27379200

約数和(自身を除く): 6603175

約数列:

[1, 5, 19, 25, 95, 191, 229, 475, 955, 1145, 3629, 4351, 4775, 5725, 18145, 21755, 43739, 90725, 108775, 218695, 831041, 1093475, 4155205, 20776025]

約数ペア:

[(1, 20776025), (5, 4155205), (19, 1093475), (25, 831041), (95, 218695), (191, 108775), (229, 90725), (475, 43739), (955, 21755), (1145, 18145), (3629, 5725), (4351, 4775)]