20178487768

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{1693}}^1\times {\mathrm{4127}}^1$

素因数の和:5864

約数の個数: 48

約数和(自身を含む): 39964034880

約数和(自身を除く): 19785547112

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 1693, 2888, 3386, 4127, 6772, 8254, 13544, 16508, 32167, 33016, 64334, 78413, 128668, 156826, 257336, 313652, 611173, 627304, 1222346, 1489847, 2444692, 2979694, 4889384, 5959388, 6987011, 11918776, 13974022, 27948044, 55896088, 132753209, 265506418, 531012836, 1062025672, 2522310971, 5044621942, 10089243884, 20178487768]

約数ペア:

[(1, 20178487768), (2, 10089243884), (4, 5044621942), (8, 2522310971), (19, 1062025672), (38, 531012836), (76, 265506418), (152, 132753209), (361, 55896088), (722, 27948044), (1444, 13974022), (1693, 11918776), (2888, 6987011), (3386, 5959388), (4127, 4889384), (6772, 2979694), (8254, 2444692), (13544, 1489847), (16508, 1222346), (32167, 627304), (33016, 611173), (64334, 313652), (78413, 257336), (128668, 156826)]