68876220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163991}}^1$

素因数の和:164010

約数の個数: 48

約数和(自身を含む): 220405248

約数和(自身を除く): 151529028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 163991, 327982, 491973, 655964, 819955, 983946, 1147937, 1639910, 1967892, 2295874, 2459865, 3279820, 3443811, 4591748, 4919730, 5739685, 6887622, 9839460, 11479370, 13775244, 17219055, 22958740, 34438110, 68876220]

約数ペア:

[(1, 68876220), (2, 34438110), (3, 22958740), (4, 17219055), (5, 13775244), (6, 11479370), (7, 9839460), (10, 6887622), (12, 5739685), (14, 4919730), (15, 4591748), (20, 3443811), (21, 3279820), (28, 2459865), (30, 2295874), (35, 1967892), (42, 1639910), (60, 1147937), (70, 983946), (84, 819955), (105, 655964), (140, 491973), (210, 327982), (420, 163991)]