40386640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1759}}^1$

素因数の和:1820

約数の個数: 80

約数和(自身を含む): 109992960

約数和(自身を除く): 69606320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 1759, 2296, 2870, 3280, 3518, 4592, 5740, 7036, 8795, 11480, 12313, 14072, 17590, 22960, 24626, 28144, 35180, 49252, 61565, 70360, 72119, 98504, 123130, 140720, 144238, 197008, 246260, 288476, 360595, 492520, 504833, 576952, 721190, 985040, 1009666, 1153904, 1442380, 2019332, 2524165, 2884760, 4038664, 5048330, 5769520, 8077328, 10096660, 20193320, 40386640]

約数ペア:

[(1, 40386640), (2, 20193320), (4, 10096660), (5, 8077328), (7, 5769520), (8, 5048330), (10, 4038664), (14, 2884760), (16, 2524165), (20, 2019332), (28, 1442380), (35, 1153904), (40, 1009666), (41, 985040), (56, 721190), (70, 576952), (80, 504833), (82, 492520), (112, 360595), (140, 288476), (164, 246260), (205, 197008), (280, 144238), (287, 140720), (328, 123130), (410, 98504), (560, 72119), (574, 70360), (656, 61565), (820, 49252), (1148, 35180), (1435, 28144), (1640, 24626), (1759, 22960), (2296, 17590), (2870, 14072), (3280, 12313), (3518, 11480), (4592, 8795), (5740, 7036)]