78517320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:675

約数の個数: 128

約数和(自身を含む): 271088640

約数和(自身を除く): 192571320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 211, 280, 420, 422, 443, 633, 840, 844, 886, 1055, 1266, 1329, 1477, 1688, 1772, 2110, 2215, 2532, 2658, 2954, 3101, 3165, 3544, 4220, 4430, 4431, 5064, 5316, 5908, 6202, 6330, 6645, 7385, 8440, 8860, 8862, 9303, 10632, 11816, 12404, 12660, 13290, 14770, 15505, 17720, 17724, 18606, 22155, 24808, 25320, 26580, 29540, 31010, 35448, 37212, 44310, 46515, 53160, 59080, 62020, 74424, 88620, 93030, 93473, 124040, 177240, 186060, 186946, 280419, 372120, 373892, 467365, 560838, 654311, 747784, 934730, 1121676, 1308622, 1402095, 1869460, 1962933, 2243352, 2617244, 2804190, 3271555, 3738920, 3925866, 5234488, 5608380, 6543110, 7851732, 9814665, 11216760, 13086220, 15703464, 19629330, 26172440, 39258660, 78517320]

約数ペア:

[(1, 78517320), (2, 39258660), (3, 26172440), (4, 19629330), (5, 15703464), (6, 13086220), (7, 11216760), (8, 9814665), (10, 7851732), (12, 6543110), (14, 5608380), (15, 5234488), (20, 3925866), (21, 3738920), (24, 3271555), (28, 2804190), (30, 2617244), (35, 2243352), (40, 1962933), (42, 1869460), (56, 1402095), (60, 1308622), (70, 1121676), (84, 934730), (105, 747784), (120, 654311), (140, 560838), (168, 467365), (210, 373892), (211, 372120), (280, 280419), (420, 186946), (422, 186060), (443, 177240), (633, 124040), (840, 93473), (844, 93030), (886, 88620), (1055, 74424), (1266, 62020), (1329, 59080), (1477, 53160), (1688, 46515), (1772, 44310), (2110, 37212), (2215, 35448), (2532, 31010), (2658, 29540), (2954, 26580), (3101, 25320), (3165, 24808), (3544, 22155), (4220, 18606), (4430, 17724), (4431, 17720), (5064, 15505), (5316, 14770), (5908, 13290), (6202, 12660), (6330, 12404), (6645, 11816), (7385, 10632), (8440, 9303), (8860, 8862)]