19700480

素因数分解:

$2^8\times 5^1\times {\mathrm{15391}}^1$

素因数の和:15412

約数の個数: 36

約数和(自身を含む): 47191872

約数和(自身を除く): 27491392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15391, 30782, 61564, 76955, 123128, 153910, 246256, 307820, 492512, 615640, 985024, 1231280, 1970048, 2462560, 3940096, 4925120, 9850240, 19700480]

約数ペア:

[(1, 19700480), (2, 9850240), (4, 4925120), (5, 3940096), (8, 2462560), (10, 1970048), (16, 1231280), (20, 985024), (32, 615640), (40, 492512), (64, 307820), (80, 246256), (128, 153910), (160, 123128), (256, 76955), (320, 61564), (640, 30782), (1280, 15391)]