21836800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{853}}^1$

素因数の和:883

約数の個数: 66

約数和(自身を含む): 54192278

約数和(自身を除く): 32355478

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 853, 1024, 1280, 1600, 1706, 2560, 3200, 3412, 4265, 5120, 6400, 6824, 8530, 12800, 13648, 17060, 21325, 25600, 27296, 34120, 42650, 54592, 68240, 85300, 109184, 136480, 170600, 218368, 272960, 341200, 436736, 545920, 682400, 873472, 1091840, 1364800, 2183680, 2729600, 4367360, 5459200, 10918400, 21836800]

約数ペア:

[(1, 21836800), (2, 10918400), (4, 5459200), (5, 4367360), (8, 2729600), (10, 2183680), (16, 1364800), (20, 1091840), (25, 873472), (32, 682400), (40, 545920), (50, 436736), (64, 341200), (80, 272960), (100, 218368), (128, 170600), (160, 136480), (200, 109184), (256, 85300), (320, 68240), (400, 54592), (512, 42650), (640, 34120), (800, 27296), (853, 25600), (1024, 21325), (1280, 17060), (1600, 13648), (1706, 12800), (2560, 8530), (3200, 6824), (3412, 6400), (4265, 5120)]