78028000

素因数分解:

$2^5\times 5^3\times {\mathrm{19507}}^1$

素因数の和:19532

約数の個数: 48

約数和(自身を含む): 191724624

約数和(自身を除く): 113696624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 19507, 39014, 78028, 97535, 156056, 195070, 312112, 390140, 487675, 624224, 780280, 975350, 1560560, 1950700, 2438375, 3121120, 3901400, 4876750, 7802800, 9753500, 15605600, 19507000, 39014000, 78028000]

約数ペア:

[(1, 78028000), (2, 39014000), (4, 19507000), (5, 15605600), (8, 9753500), (10, 7802800), (16, 4876750), (20, 3901400), (25, 3121120), (32, 2438375), (40, 1950700), (50, 1560560), (80, 975350), (100, 780280), (125, 624224), (160, 487675), (200, 390140), (250, 312112), (400, 195070), (500, 156056), (800, 97535), (1000, 78028), (2000, 39014), (4000, 19507)]