20213069864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{64937}}^1$

素因数の和:65070

約数の個数: 64

約数和(自身を含む): 42383733840

約数和(自身を除く): 22170663976

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 73, 82, 104, 146, 164, 292, 328, 533, 584, 949, 1066, 1898, 2132, 2993, 3796, 4264, 5986, 7592, 11972, 23944, 38909, 64937, 77818, 129874, 155636, 259748, 311272, 519496, 844181, 1688362, 2662417, 3376724, 4740401, 5324834, 6753448, 9480802, 10649668, 18961604, 21299336, 34611421, 37923208, 61625213, 69222842, 123250426, 138445684, 194356441, 246500852, 276891368, 388712882, 493001704, 777425764, 1554851528, 2526633733, 5053267466, 10106534932, 20213069864]

約数ペア:

[(1, 20213069864), (2, 10106534932), (4, 5053267466), (8, 2526633733), (13, 1554851528), (26, 777425764), (41, 493001704), (52, 388712882), (73, 276891368), (82, 246500852), (104, 194356441), (146, 138445684), (164, 123250426), (292, 69222842), (328, 61625213), (533, 37923208), (584, 34611421), (949, 21299336), (1066, 18961604), (1898, 10649668), (2132, 9480802), (2993, 6753448), (3796, 5324834), (4264, 4740401), (5986, 3376724), (7592, 2662417), (11972, 1688362), (23944, 844181), (38909, 519496), (64937, 311272), (77818, 259748), (129874, 155636)]