68871180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{163979}}^1$

素因数の和:163998

約数の個数: 48

約数和(自身を含む): 220389120

約数和(自身を除く): 151517940

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, 163979, 327958, 491937, 655916, 819895, 983874, 1147853, 1639790, 1967748, 2295706, 2459685, 3279580, 3443559, 4591412, 4919370, 5739265, 6887118, 9838740, 11478530, 13774236, 17217795, 22957060, 34435590, 68871180]

約数ペア:

[(1, 68871180), (2, 34435590), (3, 22957060), (4, 17217795), (5, 13774236), (6, 11478530), (7, 9838740), (10, 6887118), (12, 5739265), (14, 4919370), (15, 4591412), (20, 3443559), (21, 3279580), (28, 2459685), (30, 2295706), (35, 1967748), (42, 1639790), (60, 1147853), (70, 983874), (84, 819895), (105, 655916), (140, 491937), (210, 327958), (420, 163979)]