8242640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 22498560

約数和(自身を除く): 14255920

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, 359, 410, 560, 574, 656, 718, 820, 1148, 1435, 1436, 1640, 1795, 2296, 2513, 2870, 2872, 3280, 3590, 4592, 5026, 5740, 5744, 7180, 10052, 11480, 12565, 14360, 14719, 20104, 22960, 25130, 28720, 29438, 40208, 50260, 58876, 73595, 100520, 103033, 117752, 147190, 201040, 206066, 235504, 294380, 412132, 515165, 588760, 824264, 1030330, 1177520, 1648528, 2060660, 4121320, 8242640]

約数ペア:

[(1, 8242640), (2, 4121320), (4, 2060660), (5, 1648528), (7, 1177520), (8, 1030330), (10, 824264), (14, 588760), (16, 515165), (20, 412132), (28, 294380), (35, 235504), (40, 206066), (41, 201040), (56, 147190), (70, 117752), (80, 103033), (82, 100520), (112, 73595), (140, 58876), (164, 50260), (205, 40208), (280, 29438), (287, 28720), (328, 25130), (359, 22960), (410, 20104), (560, 14719), (574, 14360), (656, 12565), (718, 11480), (820, 10052), (1148, 7180), (1435, 5744), (1436, 5740), (1640, 5026), (1795, 4592), (2296, 3590), (2513, 3280), (2870, 2872)]