19190275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 25873344

約数和(自身を除く): 6683069

約数列:

[1, 5, 13, 25, 65, 137, 325, 431, 685, 1781, 2155, 3425, 5603, 8905, 10775, 28015, 44525, 59047, 140075, 295235, 767611, 1476175, 3838055, 19190275]

約数ペア:

[(1, 19190275), (5, 3838055), (13, 1476175), (25, 767611), (65, 295235), (137, 140075), (325, 59047), (431, 44525), (685, 28015), (1781, 10775), (2155, 8905), (3425, 5603)]