19440875

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 26058240

約数和(自身を除く): 6617365

約数列:

[1, 5, 25, 29, 31, 125, 145, 155, 173, 725, 775, 865, 899, 3625, 3875, 4325, 4495, 5017, 5363, 21625, 22475, 25085, 26815, 112375, 125425, 134075, 155527, 627125, 670375, 777635, 3888175, 19440875]

約数ペア:

[(1, 19440875), (5, 3888175), (25, 777635), (29, 670375), (31, 627125), (125, 155527), (145, 134075), (155, 125425), (173, 112375), (725, 26815), (775, 25085), (865, 22475), (899, 21625), (3625, 5363), (3875, 5017), (4325, 4495)]