20795961892

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1279}}^1\times {\mathrm{1523}}^1$

素因数の和:2980

約数の個数: 48

約数和(自身を含む): 38834933760

約数和(自身を除く): 18038971868

約数列:

[1, 2, 4, 17, 34, 68, 157, 314, 628, 1279, 1523, 2558, 2669, 3046, 5116, 5338, 6092, 10676, 21743, 25891, 43486, 51782, 86972, 103564, 200803, 239111, 401606, 478222, 803212, 956444, 1947917, 3413651, 3895834, 4064887, 6827302, 7791668, 8129774, 13654604, 16259548, 33114589, 66229178, 132458356, 305822969, 611645938, 1223291876, 5198990473, 10397980946, 20795961892]

約数ペア:

[(1, 20795961892), (2, 10397980946), (4, 5198990473), (17, 1223291876), (34, 611645938), (68, 305822969), (157, 132458356), (314, 66229178), (628, 33114589), (1279, 16259548), (1523, 13654604), (2558, 8129774), (2669, 7791668), (3046, 6827302), (5116, 4064887), (5338, 3895834), (6092, 3413651), (10676, 1947917), (21743, 956444), (25891, 803212), (43486, 478222), (51782, 401606), (86972, 239111), (103564, 200803)]