68740000

素因数分解:

$2^5\times 5^4\times 7^1\times {\mathrm{491}}^1$

素因数の和:528

約数の個数: 120

約数和(自身を含む): 193663008

約数和(自身を除く): 124923008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 350, 400, 491, 500, 560, 625, 700, 800, 875, 982, 1000, 1120, 1250, 1400, 1750, 1964, 2000, 2455, 2500, 2800, 3437, 3500, 3928, 4000, 4375, 4910, 5000, 5600, 6874, 7000, 7856, 8750, 9820, 10000, 12275, 13748, 14000, 15712, 17185, 17500, 19640, 20000, 24550, 27496, 28000, 34370, 35000, 39280, 49100, 54992, 61375, 68740, 70000, 78560, 85925, 98200, 109984, 122750, 137480, 140000, 171850, 196400, 245500, 274960, 306875, 343700, 392800, 429625, 491000, 549920, 613750, 687400, 859250, 982000, 1227500, 1374800, 1718500, 1964000, 2148125, 2455000, 2749600, 3437000, 4296250, 4910000, 6874000, 8592500, 9820000, 13748000, 17185000, 34370000, 68740000]

約数ペア:

[(1, 68740000), (2, 34370000), (4, 17185000), (5, 13748000), (7, 9820000), (8, 8592500), (10, 6874000), (14, 4910000), (16, 4296250), (20, 3437000), (25, 2749600), (28, 2455000), (32, 2148125), (35, 1964000), (40, 1718500), (50, 1374800), (56, 1227500), (70, 982000), (80, 859250), (100, 687400), (112, 613750), (125, 549920), (140, 491000), (160, 429625), (175, 392800), (200, 343700), (224, 306875), (250, 274960), (280, 245500), (350, 196400), (400, 171850), (491, 140000), (500, 137480), (560, 122750), (625, 109984), (700, 98200), (800, 85925), (875, 78560), (982, 70000), (1000, 68740), (1120, 61375), (1250, 54992), (1400, 49100), (1750, 39280), (1964, 35000), (2000, 34370), (2455, 28000), (2500, 27496), (2800, 24550), (3437, 20000), (3500, 19640), (3928, 17500), (4000, 17185), (4375, 15712), (4910, 14000), (5000, 13748), (5600, 12275), (6874, 10000), (7000, 9820), (7856, 8750)]