61688360

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{11257}}^1$

素因数の和:11405

約数の個数: 32

約数和(自身を含む): 139824360

約数和(自身を除く): 78136000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 11257, 22514, 45028, 56285, 90056, 112570, 225140, 450280, 1542209, 3084418, 6168836, 7711045, 12337672, 15422090, 30844180, 61688360]

約数ペア:

[(1, 61688360), (2, 30844180), (4, 15422090), (5, 12337672), (8, 7711045), (10, 6168836), (20, 3084418), (40, 1542209), (137, 450280), (274, 225140), (548, 112570), (685, 90056), (1096, 56285), (1370, 45028), (2740, 22514), (5480, 11257)]