20757776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4339}}^1$

素因数の和:4383

約数の個数: 40

約数和(自身を含む): 45205440

約数和(自身を除く): 24447664

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4339, 4784, 8678, 17356, 34712, 56407, 69424, 99797, 112814, 199594, 225628, 399188, 451256, 798376, 902512, 1297361, 1596752, 2594722, 5189444, 10378888, 20757776]

約数ペア:

[(1, 20757776), (2, 10378888), (4, 5189444), (8, 2594722), (13, 1596752), (16, 1297361), (23, 902512), (26, 798376), (46, 451256), (52, 399188), (92, 225628), (104, 199594), (184, 112814), (208, 99797), (299, 69424), (368, 56407), (598, 34712), (1196, 17356), (2392, 8678), (4339, 4784)]