20303775

素因数分解:

$3^2\times 5^2\times {\mathrm{90239}}^1$

素因数の和:90255

約数の個数: 18

約数和(自身を含む): 36366720

約数和(自身を除く): 16062945

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90239, 270717, 451195, 812151, 1353585, 2255975, 4060755, 6767925, 20303775]

約数ペア:

[(1, 20303775), (3, 6767925), (5, 4060755), (9, 2255975), (15, 1353585), (25, 812151), (45, 451195), (75, 270717), (225, 90239)]