20880596

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 21697324

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 47, 92, 94, 188, 253, 439, 506, 517, 878, 1012, 1034, 1081, 1756, 2068, 2162, 4324, 4829, 9658, 10097, 11891, 19316, 20194, 20633, 23782, 40388, 41266, 47564, 82532, 111067, 222134, 226963, 444268, 453926, 474559, 907852, 949118, 1898236, 5220149, 10440298, 20880596]

約数ペア:

[(1, 20880596), (2, 10440298), (4, 5220149), (11, 1898236), (22, 949118), (23, 907852), (44, 474559), (46, 453926), (47, 444268), (92, 226963), (94, 222134), (188, 111067), (253, 82532), (439, 47564), (506, 41266), (517, 40388), (878, 23782), (1012, 20633), (1034, 20194), (1081, 19316), (1756, 11891), (2068, 10097), (2162, 9658), (4324, 4829)]