19932800

素因数分解:

$2^7\times 5^2\times {\mathrm{6229}}^1$

素因数の和:6253

約数の個数: 48

約数和(自身を含む): 49248150

約数和(自身を除く): 29315350

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6229, 12458, 24916, 31145, 49832, 62290, 99664, 124580, 155725, 199328, 249160, 311450, 398656, 498320, 622900, 797312, 996640, 1245800, 1993280, 2491600, 3986560, 4983200, 9966400, 19932800]

約数ペア:

[(1, 19932800), (2, 9966400), (4, 4983200), (5, 3986560), (8, 2491600), (10, 1993280), (16, 1245800), (20, 996640), (25, 797312), (32, 622900), (40, 498320), (50, 398656), (64, 311450), (80, 249160), (100, 199328), (128, 155725), (160, 124580), (200, 99664), (320, 62290), (400, 49832), (640, 31145), (800, 24916), (1600, 12458), (3200, 6229)]