18305772860

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{6680939}}^1$

素因数の和:6681085

約数の個数: 24

約数和(自身を含む): 38722728240

約数和(自身を除く): 20416955380

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 6680939, 13361878, 26723756, 33404695, 66809390, 133618780, 915288643, 1830577286, 3661154572, 4576443215, 9152886430, 18305772860]

約数ペア:

[(1, 18305772860), (2, 9152886430), (4, 4576443215), (5, 3661154572), (10, 1830577286), (20, 915288643), (137, 133618780), (274, 66809390), (548, 33404695), (685, 26723756), (1370, 13361878), (2740, 6680939)]