20312000

素因数分解:

$2^6\times 5^3\times {\mathrm{2539}}^1$

素因数の和:2566

約数の個数: 56

約数和(自身を含む): 50322480

約数和(自身を除く): 30010480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 2539, 4000, 5078, 8000, 10156, 12695, 20312, 25390, 40624, 50780, 63475, 81248, 101560, 126950, 162496, 203120, 253900, 317375, 406240, 507800, 634750, 812480, 1015600, 1269500, 2031200, 2539000, 4062400, 5078000, 10156000, 20312000]

約数ペア:

[(1, 20312000), (2, 10156000), (4, 5078000), (5, 4062400), (8, 2539000), (10, 2031200), (16, 1269500), (20, 1015600), (25, 812480), (32, 634750), (40, 507800), (50, 406240), (64, 317375), (80, 253900), (100, 203120), (125, 162496), (160, 126950), (200, 101560), (250, 81248), (320, 63475), (400, 50780), (500, 40624), (800, 25390), (1000, 20312), (1600, 12695), (2000, 10156), (2539, 8000), (4000, 5078)]