20546000

素因数分解:

$2^4\times 5^3\times {\mathrm{10273}}^1$

素因数の和:10296

約数の個数: 40

約数和(自身を含む): 49685064

約数和(自身を除く): 29139064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10273, 20546, 41092, 51365, 82184, 102730, 164368, 205460, 256825, 410920, 513650, 821840, 1027300, 1284125, 2054600, 2568250, 4109200, 5136500, 10273000, 20546000]

約数ペア:

[(1, 20546000), (2, 10273000), (4, 5136500), (5, 4109200), (8, 2568250), (10, 2054600), (16, 1284125), (20, 1027300), (25, 821840), (40, 513650), (50, 410920), (80, 256825), (100, 205460), (125, 164368), (200, 102730), (250, 82184), (400, 51365), (500, 41092), (1000, 20546), (2000, 10273)]