20525560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46649}}^1$

素因数の和:46671

約数の個数: 32

約数和(自身を含む): 50382000

約数和(自身を除く): 29856440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46649, 93298, 186596, 233245, 373192, 466490, 513139, 932980, 1026278, 1865960, 2052556, 2565695, 4105112, 5131390, 10262780, 20525560]

約数ペア:

[(1, 20525560), (2, 10262780), (4, 5131390), (5, 4105112), (8, 2565695), (10, 2052556), (11, 1865960), (20, 1026278), (22, 932980), (40, 513139), (44, 466490), (55, 373192), (88, 233245), (110, 186596), (220, 93298), (440, 46649)]