8620000

素因数分解:

$2^5\times 5^4\times {\mathrm{431}}^1$

素因数の和:461

約数の個数: 60

約数和(自身を含む): 21255696

約数和(自身を除く): 12635696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 431, 500, 625, 800, 862, 1000, 1250, 1724, 2000, 2155, 2500, 3448, 4000, 4310, 5000, 6896, 8620, 10000, 10775, 13792, 17240, 20000, 21550, 34480, 43100, 53875, 68960, 86200, 107750, 172400, 215500, 269375, 344800, 431000, 538750, 862000, 1077500, 1724000, 2155000, 4310000, 8620000]

約数ペア:

[(1, 8620000), (2, 4310000), (4, 2155000), (5, 1724000), (8, 1077500), (10, 862000), (16, 538750), (20, 431000), (25, 344800), (32, 269375), (40, 215500), (50, 172400), (80, 107750), (100, 86200), (125, 68960), (160, 53875), (200, 43100), (250, 34480), (400, 21550), (431, 20000), (500, 17240), (625, 13792), (800, 10775), (862, 10000), (1000, 8620), (1250, 6896), (1724, 5000), (2000, 4310), (2155, 4000), (2500, 3448)]