20178049356

素因数分解:

$2^2\times 3^2\times {\mathrm{409}}^1\times {\mathrm{479}}^1\times {\mathrm{2861}}^1$

素因数の和:3759

約数の個数: 72

約数和(自身を含む): 51254985600

約数和(自身を除く): 31076936244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 409, 479, 818, 958, 1227, 1437, 1636, 1916, 2454, 2861, 2874, 3681, 4311, 4908, 5722, 5748, 7362, 8583, 8622, 11444, 14724, 17166, 17244, 25749, 34332, 51498, 102996, 195911, 391822, 587733, 783644, 1170149, 1175466, 1370419, 1763199, 2340298, 2350932, 2740838, 3510447, 3526398, 4111257, 4680596, 5481676, 7020894, 7052796, 8222514, 10531341, 12333771, 14041788, 16445028, 21062682, 24667542, 42125364, 49335084, 560501371, 1121002742, 1681504113, 2242005484, 3363008226, 5044512339, 6726016452, 10089024678, 20178049356]

約数ペア:

[(1, 20178049356), (2, 10089024678), (3, 6726016452), (4, 5044512339), (6, 3363008226), (9, 2242005484), (12, 1681504113), (18, 1121002742), (36, 560501371), (409, 49335084), (479, 42125364), (818, 24667542), (958, 21062682), (1227, 16445028), (1437, 14041788), (1636, 12333771), (1916, 10531341), (2454, 8222514), (2861, 7052796), (2874, 7020894), (3681, 5481676), (4311, 4680596), (4908, 4111257), (5722, 3526398), (5748, 3510447), (7362, 2740838), (8583, 2350932), (8622, 2340298), (11444, 1763199), (14724, 1370419), (17166, 1175466), (17244, 1170149), (25749, 783644), (34332, 587733), (51498, 391822), (102996, 195911)]