280550416016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{161591}}^1$

素因数の和:162120

約数の個数: 80

約数和(自身を含む): 621079498368

約数和(自身を除く): 340529082352

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 491, 884, 982, 1768, 1964, 3536, 3928, 6383, 7856, 8347, 12766, 16694, 25532, 33388, 51064, 66776, 102128, 108511, 133552, 161591, 217022, 323182, 434044, 646364, 868088, 1292728, 1736176, 2100683, 2585456, 2747047, 4201366, 5494094, 8402732, 10988188, 16805464, 21976376, 33610928, 35711611, 43952752, 71423222, 79341181, 142846444, 158682362, 285692888, 317364724, 571385776, 634729448, 1031435353, 1269458896, 1348800077, 2062870706, 2697600154, 4125741412, 5395200308, 8251482824, 10790400616, 16502965648, 17534401001, 21580801232, 35068802002, 70137604004, 140275208008, 280550416016]

約数ペア:

[(1, 280550416016), (2, 140275208008), (4, 70137604004), (8, 35068802002), (13, 21580801232), (16, 17534401001), (17, 16502965648), (26, 10790400616), (34, 8251482824), (52, 5395200308), (68, 4125741412), (104, 2697600154), (136, 2062870706), (208, 1348800077), (221, 1269458896), (272, 1031435353), (442, 634729448), (491, 571385776), (884, 317364724), (982, 285692888), (1768, 158682362), (1964, 142846444), (3536, 79341181), (3928, 71423222), (6383, 43952752), (7856, 35711611), (8347, 33610928), (12766, 21976376), (16694, 16805464), (25532, 10988188), (33388, 8402732), (51064, 5494094), (66776, 4201366), (102128, 2747047), (108511, 2585456), (133552, 2100683), (161591, 1736176), (217022, 1292728), (323182, 868088), (434044, 646364)]