12776800

素因数分解:

$2^5\times 5^2\times {\mathrm{15971}}^1$

素因数の和:15991

約数の個数: 36

約数和(自身を含む): 31193316

約数和(自身を除く): 18416516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 15971, 31942, 63884, 79855, 127768, 159710, 255536, 319420, 399275, 511072, 638840, 798550, 1277680, 1597100, 2555360, 3194200, 6388400, 12776800]

約数ペア:

[(1, 12776800), (2, 6388400), (4, 3194200), (5, 2555360), (8, 1597100), (10, 1277680), (16, 798550), (20, 638840), (25, 511072), (32, 399275), (40, 319420), (50, 255536), (80, 159710), (100, 127768), (160, 79855), (200, 63884), (400, 31942), (800, 15971)]