20646560

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11731}}^1$

素因数の和:11757

約数の個数: 48

約数和(自身を含む): 53216352

約数和(自身を除く): 32569792

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11731, 23462, 46924, 58655, 93848, 117310, 129041, 187696, 234620, 258082, 375392, 469240, 516164, 645205, 938480, 1032328, 1290410, 1876960, 2064656, 2580820, 4129312, 5161640, 10323280, 20646560]

約数ペア:

[(1, 20646560), (2, 10323280), (4, 5161640), (5, 4129312), (8, 2580820), (10, 2064656), (11, 1876960), (16, 1290410), (20, 1032328), (22, 938480), (32, 645205), (40, 516164), (44, 469240), (55, 375392), (80, 258082), (88, 234620), (110, 187696), (160, 129041), (176, 117310), (220, 93848), (352, 58655), (440, 46924), (880, 23462), (1760, 11731)]