19734875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 26889408

約数和(自身を除く): 7154533

約数列:

[1, 5, 17, 25, 37, 85, 125, 185, 251, 425, 629, 925, 1255, 2125, 3145, 4267, 4625, 6275, 9287, 15725, 21335, 31375, 46435, 78625, 106675, 157879, 232175, 533375, 789395, 1160875, 3946975, 19734875]

約数ペア:

[(1, 19734875), (5, 3946975), (17, 1160875), (25, 789395), (37, 533375), (85, 232175), (125, 157879), (185, 106675), (251, 78625), (425, 46435), (629, 31375), (925, 21335), (1255, 15725), (2125, 9287), (3145, 6275), (4267, 4625)]