19816000

素因数分解:

$2^6\times 5^3\times {\mathrm{2477}}^1$

素因数の和:2504

約数の個数: 56

約数和(自身を含む): 49094136

約数和(自身を除く): 29278136

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, 2477, 4000, 4954, 8000, 9908, 12385, 19816, 24770, 39632, 49540, 61925, 79264, 99080, 123850, 158528, 198160, 247700, 309625, 396320, 495400, 619250, 792640, 990800, 1238500, 1981600, 2477000, 3963200, 4954000, 9908000, 19816000]

約数ペア:

[(1, 19816000), (2, 9908000), (4, 4954000), (5, 3963200), (8, 2477000), (10, 1981600), (16, 1238500), (20, 990800), (25, 792640), (32, 619250), (40, 495400), (50, 396320), (64, 309625), (80, 247700), (100, 198160), (125, 158528), (160, 123850), (200, 99080), (250, 79264), (320, 61925), (400, 49540), (500, 39632), (800, 24770), (1000, 19816), (1600, 12385), (2000, 9908), (2477, 8000), (4000, 4954)]