20193320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1759}}^1$

素因数の和:1818

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 33029080

約数列:

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

約数ペア:

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