81304000

素因数分解:

$2^6\times 5^3\times {\mathrm{10163}}^1$

素因数の和:10190

約数の個数: 56

約数和(自身を含む): 201369168

約数和(自身を除く): 120065168

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, 4000, 8000, 10163, 20326, 40652, 50815, 81304, 101630, 162608, 203260, 254075, 325216, 406520, 508150, 650432, 813040, 1016300, 1270375, 1626080, 2032600, 2540750, 3252160, 4065200, 5081500, 8130400, 10163000, 16260800, 20326000, 40652000, 81304000]

約数ペア:

[(1, 81304000), (2, 40652000), (4, 20326000), (5, 16260800), (8, 10163000), (10, 8130400), (16, 5081500), (20, 4065200), (25, 3252160), (32, 2540750), (40, 2032600), (50, 1626080), (64, 1270375), (80, 1016300), (100, 813040), (125, 650432), (160, 508150), (200, 406520), (250, 325216), (320, 254075), (400, 203260), (500, 162608), (800, 101630), (1000, 81304), (1600, 50815), (2000, 40652), (4000, 20326), (8000, 10163)]