20512861212

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{409831}}^1$

素因数の和:409978

約数の個数: 48

約数和(自身を含む): 49481476352

約数和(自身を除く): 28968615140

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 97, 129, 172, 194, 258, 291, 388, 516, 582, 1164, 4171, 8342, 12513, 16684, 25026, 50052, 409831, 819662, 1229493, 1639324, 2458986, 4917972, 17622733, 35245466, 39753607, 52868199, 70490932, 79507214, 105736398, 119260821, 159014428, 211472796, 238521642, 477043284, 1709405101, 3418810202, 5128215303, 6837620404, 10256430606, 20512861212]

約数ペア:

[(1, 20512861212), (2, 10256430606), (3, 6837620404), (4, 5128215303), (6, 3418810202), (12, 1709405101), (43, 477043284), (86, 238521642), (97, 211472796), (129, 159014428), (172, 119260821), (194, 105736398), (258, 79507214), (291, 70490932), (388, 52868199), (516, 39753607), (582, 35245466), (1164, 17622733), (4171, 4917972), (8342, 2458986), (12513, 1639324), (16684, 1229493), (25026, 819662), (50052, 409831)]