668926778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 1178997120

約数和(自身を除く): 510070342

約数列:

[1, 2, 13, 17, 26, 34, 59, 113, 118, 221, 226, 227, 442, 454, 767, 1003, 1469, 1534, 1921, 2006, 2938, 2951, 3842, 3859, 5902, 6667, 7718, 13039, 13334, 13393, 24973, 25651, 26078, 26786, 49946, 50167, 51302, 86671, 100334, 113339, 173342, 174109, 226678, 227681, 333463, 348218, 436067, 455362, 666926, 872134, 1473407, 1513409, 2946814, 2959853, 3026818, 5668871, 5919706, 11337742, 19674317, 25727953, 39348634, 51455906, 334463389, 668926778]

約数ペア:

[(1, 668926778), (2, 334463389), (13, 51455906), (17, 39348634), (26, 25727953), (34, 19674317), (59, 11337742), (113, 5919706), (118, 5668871), (221, 3026818), (226, 2959853), (227, 2946814), (442, 1513409), (454, 1473407), (767, 872134), (1003, 666926), (1469, 455362), (1534, 436067), (1921, 348218), (2006, 333463), (2938, 227681), (2951, 226678), (3842, 174109), (3859, 173342), (5902, 113339), (6667, 100334), (7718, 86671), (13039, 51302), (13334, 50167), (13393, 49946), (24973, 26786), (25651, 26078)]