21008800

素因数分解:

$2^5\times 5^2\times {\mathrm{26261}}^1$

素因数の和:26281

約数の個数: 36

約数和(自身を含む): 51289686

約数和(自身を除く): 30280886

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26261, 52522, 105044, 131305, 210088, 262610, 420176, 525220, 656525, 840352, 1050440, 1313050, 2100880, 2626100, 4201760, 5252200, 10504400, 21008800]

約数ペア:

[(1, 21008800), (2, 10504400), (4, 5252200), (5, 4201760), (8, 2626100), (10, 2100880), (16, 1313050), (20, 1050440), (25, 840352), (32, 656525), (40, 525220), (50, 420176), (80, 262610), (100, 210088), (160, 131305), (200, 105044), (400, 52522), (800, 26261)]