20682800

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1783}}^1$

素因数の和:1830

約数の個数: 60

約数和(自身を含む): 51432720

約数和(自身を除く): 30749920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1783, 2320, 2900, 3566, 5800, 7132, 8915, 11600, 14264, 17830, 28528, 35660, 44575, 51707, 71320, 89150, 103414, 142640, 178300, 206828, 258535, 356600, 413656, 517070, 713200, 827312, 1034140, 1292675, 2068280, 2585350, 4136560, 5170700, 10341400, 20682800]

約数ペア:

[(1, 20682800), (2, 10341400), (4, 5170700), (5, 4136560), (8, 2585350), (10, 2068280), (16, 1292675), (20, 1034140), (25, 827312), (29, 713200), (40, 517070), (50, 413656), (58, 356600), (80, 258535), (100, 206828), (116, 178300), (145, 142640), (200, 103414), (232, 89150), (290, 71320), (400, 51707), (464, 44575), (580, 35660), (725, 28528), (1160, 17830), (1450, 14264), (1783, 11600), (2320, 8915), (2900, 7132), (3566, 5800)]