821148720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{488779}}^1$

素因数の和:488802

約数の個数: 80

約数和(自身を含む): 2909218560

約数和(自身を除く): 2088069840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 488779, 977558, 1466337, 1955116, 2443895, 2932674, 3421453, 3910232, 4887790, 5865348, 6842906, 7331685, 7820464, 9775580, 10264359, 11730696, 13685812, 14663370, 17107265, 19551160, 20528718, 23461392, 27371624, 29326740, 34214530, 39102320, 41057436, 51321795, 54743248, 58653480, 68429060, 82114872, 102643590, 117306960, 136858120, 164229744, 205287180, 273716240, 410574360, 821148720]

約数ペア:

[(1, 821148720), (2, 410574360), (3, 273716240), (4, 205287180), (5, 164229744), (6, 136858120), (7, 117306960), (8, 102643590), (10, 82114872), (12, 68429060), (14, 58653480), (15, 54743248), (16, 51321795), (20, 41057436), (21, 39102320), (24, 34214530), (28, 29326740), (30, 27371624), (35, 23461392), (40, 20528718), (42, 19551160), (48, 17107265), (56, 14663370), (60, 13685812), (70, 11730696), (80, 10264359), (84, 9775580), (105, 7820464), (112, 7331685), (120, 6842906), (140, 5865348), (168, 4887790), (210, 3910232), (240, 3421453), (280, 2932674), (336, 2443895), (420, 1955116), (560, 1466337), (840, 977558), (1680, 488779)]