78124000

素因数分解:

$2^5\times 5^3\times {\mathrm{19531}}^1$

素因数の和:19556

約数の個数: 48

約数和(自身を含む): 191960496

約数和(自身を除く): 113836496

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, 19531, 39062, 78124, 97655, 156248, 195310, 312496, 390620, 488275, 624992, 781240, 976550, 1562480, 1953100, 2441375, 3124960, 3906200, 4882750, 7812400, 9765500, 15624800, 19531000, 39062000, 78124000]

約数ペア:

[(1, 78124000), (2, 39062000), (4, 19531000), (5, 15624800), (8, 9765500), (10, 7812400), (16, 4882750), (20, 3906200), (25, 3124960), (32, 2441375), (40, 1953100), (50, 1562480), (80, 976550), (100, 781240), (125, 624992), (160, 488275), (200, 390620), (250, 312496), (400, 195310), (500, 156248), (800, 97655), (1000, 78124), (2000, 39062), (4000, 19531)]