19845025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 26560800

約数和(自身を除く): 6715775

約数列:

[1, 5, 19, 25, 41, 95, 205, 475, 779, 1019, 1025, 3895, 5095, 19361, 19475, 25475, 41779, 96805, 208895, 484025, 793801, 1044475, 3969005, 19845025]

約数ペア:

[(1, 19845025), (5, 3969005), (19, 1044475), (25, 793801), (41, 484025), (95, 208895), (205, 96805), (475, 41779), (779, 25475), (1019, 19475), (1025, 19361), (3895, 5095)]