20045375

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{739}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 29552640

約数和(自身を除く): 9507265

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 739, 775, 875, 1085, 3695, 3875, 5173, 5425, 18475, 22909, 25865, 27125, 92375, 114545, 129325, 160363, 572725, 646625, 801815, 2863625, 4009075, 20045375]

約数ペア:

[(1, 20045375), (5, 4009075), (7, 2863625), (25, 801815), (31, 646625), (35, 572725), (125, 160363), (155, 129325), (175, 114545), (217, 92375), (739, 27125), (775, 25865), (875, 22909), (1085, 18475), (3695, 5425), (3875, 5173)]