28148386

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 26283614

約数列:

[1, 2, 7, 14, 19, 29, 38, 41, 58, 82, 89, 133, 178, 203, 266, 287, 406, 551, 574, 623, 779, 1102, 1189, 1246, 1558, 1691, 2378, 2581, 3382, 3649, 3857, 5162, 5453, 7298, 7714, 8323, 10906, 11837, 16646, 18067, 22591, 23674, 25543, 36134, 45182, 49039, 51086, 69331, 98078, 105821, 138662, 158137, 211642, 316274, 343273, 485317, 686546, 740747, 970634, 1481494, 2010599, 4021198, 14074193, 28148386]

約数ペア:

[(1, 28148386), (2, 14074193), (7, 4021198), (14, 2010599), (19, 1481494), (29, 970634), (38, 740747), (41, 686546), (58, 485317), (82, 343273), (89, 316274), (133, 211642), (178, 158137), (203, 138662), (266, 105821), (287, 98078), (406, 69331), (551, 51086), (574, 49039), (623, 45182), (779, 36134), (1102, 25543), (1189, 23674), (1246, 22591), (1558, 18067), (1691, 16646), (2378, 11837), (2581, 10906), (3382, 8323), (3649, 7714), (3857, 7298), (5162, 5453)]