20197802276

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1\times {\mathrm{2447}}^1$

素因数の和:3828

約数の個数: 48

約数和(自身を含む): 37189506816

約数和(自身を除く): 16991704540

約数列:

[1, 2, 4, 37, 43, 74, 86, 148, 172, 1297, 1591, 2447, 2594, 3182, 4894, 5188, 6364, 9788, 47989, 55771, 90539, 95978, 105221, 111542, 181078, 191956, 210442, 223084, 362156, 420884, 2063527, 3173759, 3893177, 4127054, 6347518, 7786354, 8254108, 12695036, 15572708, 117429083, 136471637, 234858166, 272943274, 469716332, 545886548, 5049450569, 10098901138, 20197802276]

約数ペア:

[(1, 20197802276), (2, 10098901138), (4, 5049450569), (37, 545886548), (43, 469716332), (74, 272943274), (86, 234858166), (148, 136471637), (172, 117429083), (1297, 15572708), (1591, 12695036), (2447, 8254108), (2594, 7786354), (3182, 6347518), (4894, 4127054), (5188, 3893177), (6364, 3173759), (9788, 2063527), (47989, 420884), (55771, 362156), (90539, 223084), (95978, 210442), (105221, 191956), (111542, 181078)]