20309500

素因数分解:

$2^2\times 5^3\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 24506180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 151, 250, 269, 302, 500, 538, 604, 755, 1076, 1345, 1510, 2690, 3020, 3775, 5380, 6725, 7550, 13450, 15100, 18875, 26900, 33625, 37750, 40619, 67250, 75500, 81238, 134500, 162476, 203095, 406190, 812380, 1015475, 2030950, 4061900, 5077375, 10154750, 20309500]

約数ペア:

[(1, 20309500), (2, 10154750), (4, 5077375), (5, 4061900), (10, 2030950), (20, 1015475), (25, 812380), (50, 406190), (100, 203095), (125, 162476), (151, 134500), (250, 81238), (269, 75500), (302, 67250), (500, 40619), (538, 37750), (604, 33625), (755, 26900), (1076, 18875), (1345, 15100), (1510, 13450), (2690, 7550), (3020, 6725), (3775, 5380)]