257989221639

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{49789}}^1$

素因数の和:49942

約数の個数: 80

約数和(自身を含む): 421624906560

約数和(自身を除く): 163635684921

約数列:

[1, 3, 9, 17, 27, 51, 53, 71, 81, 153, 159, 213, 459, 477, 639, 901, 1207, 1377, 1431, 1917, 2703, 3621, 3763, 4293, 5751, 8109, 10863, 11289, 24327, 32589, 33867, 49789, 63971, 72981, 97767, 101601, 149367, 191913, 304803, 448101, 575739, 846413, 1344303, 1727217, 2539239, 2638817, 3535019, 4032909, 5181651, 7617717, 7916451, 10605057, 22853151, 23749353, 31815171, 44859889, 60095323, 68559453, 71248059, 95445513, 134579667, 180285969, 187356007, 213744177, 286336539, 403739001, 540857907, 562068021, 1211217003, 1622573721, 1686204063, 3185052119, 3633651009, 4867721163, 5058612189, 9555156357, 15175836567, 28665469071, 85996407213, 257989221639]

約数ペア:

[(1, 257989221639), (3, 85996407213), (9, 28665469071), (17, 15175836567), (27, 9555156357), (51, 5058612189), (53, 4867721163), (71, 3633651009), (81, 3185052119), (153, 1686204063), (159, 1622573721), (213, 1211217003), (459, 562068021), (477, 540857907), (639, 403739001), (901, 286336539), (1207, 213744177), (1377, 187356007), (1431, 180285969), (1917, 134579667), (2703, 95445513), (3621, 71248059), (3763, 68559453), (4293, 60095323), (5751, 44859889), (8109, 31815171), (10863, 23749353), (11289, 22853151), (24327, 10605057), (32589, 7916451), (33867, 7617717), (49789, 5181651), (63971, 4032909), (72981, 3535019), (97767, 2638817), (101601, 2539239), (149367, 1727217), (191913, 1344303), (304803, 846413), (448101, 575739)]