20542375

素因数分解:

$5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1381}}^1$

素因数の和:1420

約数の個数: 32

約数和(自身を含む): 31045248

約数和(自身を除く): 10502873

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 425, 595, 875, 1381, 2125, 2975, 6905, 9667, 14875, 23477, 34525, 48335, 117385, 164339, 172625, 241675, 586925, 821695, 1208375, 2934625, 4108475, 20542375]

約数ペア:

[(1, 20542375), (5, 4108475), (7, 2934625), (17, 1208375), (25, 821695), (35, 586925), (85, 241675), (119, 172625), (125, 164339), (175, 117385), (425, 48335), (595, 34525), (875, 23477), (1381, 14875), (2125, 9667), (2975, 6905)]