40028660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2087}}^1$

素因数の和:2240

約数の個数: 48

約数和(自身を含む): 96816384

約数和(自身を除く): 56787724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 140, 274, 548, 685, 959, 1370, 1918, 2087, 2740, 3836, 4174, 4795, 8348, 9590, 10435, 14609, 19180, 20870, 29218, 41740, 58436, 73045, 146090, 285919, 292180, 571838, 1143676, 1429595, 2001433, 2859190, 4002866, 5718380, 8005732, 10007165, 20014330, 40028660]

約数ペア:

[(1, 40028660), (2, 20014330), (4, 10007165), (5, 8005732), (7, 5718380), (10, 4002866), (14, 2859190), (20, 2001433), (28, 1429595), (35, 1143676), (70, 571838), (137, 292180), (140, 285919), (274, 146090), (548, 73045), (685, 58436), (959, 41740), (1370, 29218), (1918, 20870), (2087, 19180), (2740, 14609), (3836, 10435), (4174, 9590), (4795, 8348)]