18850775

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:451

約数の個数: 24

約数和(自身を含む): 24467184

約数和(自身を除く): 5616409

約数列:

[1, 5, 25, 41, 53, 205, 265, 347, 1025, 1325, 1735, 2173, 8675, 10865, 14227, 18391, 54325, 71135, 91955, 355675, 459775, 754031, 3770155, 18850775]

約数ペア:

[(1, 18850775), (5, 3770155), (25, 754031), (41, 459775), (53, 355675), (205, 91955), (265, 71135), (347, 54325), (1025, 18391), (1325, 14227), (1735, 10865), (2173, 8675)]