131227128

素因数分解:

$2^3\times 3^4\times {\mathrm{313}}^1\times {\mathrm{647}}^1$

素因数の和:978

約数の個数: 80

約数和(自身を含む): 369301680

約数和(自身を除く): 238074552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 313, 324, 626, 647, 648, 939, 1252, 1294, 1878, 1941, 2504, 2588, 2817, 3756, 3882, 5176, 5634, 5823, 7512, 7764, 8451, 11268, 11646, 15528, 16902, 17469, 22536, 23292, 25353, 33804, 34938, 46584, 50706, 52407, 67608, 69876, 101412, 104814, 139752, 202511, 202824, 209628, 405022, 419256, 607533, 810044, 1215066, 1620088, 1822599, 2430132, 3645198, 4860264, 5467797, 7290396, 10935594, 14580792, 16403391, 21871188, 32806782, 43742376, 65613564, 131227128]

約数ペア:

[(1, 131227128), (2, 65613564), (3, 43742376), (4, 32806782), (6, 21871188), (8, 16403391), (9, 14580792), (12, 10935594), (18, 7290396), (24, 5467797), (27, 4860264), (36, 3645198), (54, 2430132), (72, 1822599), (81, 1620088), (108, 1215066), (162, 810044), (216, 607533), (313, 419256), (324, 405022), (626, 209628), (647, 202824), (648, 202511), (939, 139752), (1252, 104814), (1294, 101412), (1878, 69876), (1941, 67608), (2504, 52407), (2588, 50706), (2817, 46584), (3756, 34938), (3882, 33804), (5176, 25353), (5634, 23292), (5823, 22536), (7512, 17469), (7764, 16902), (8451, 15528), (11268, 11646)]