81561628

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{2357}}^1$

素因数の和:2613

約数の個数: 24

約数和(自身を含む): 146969424

約数和(自身を除く): 65407796

約数列:

[1, 2, 4, 41, 82, 164, 211, 422, 844, 2357, 4714, 8651, 9428, 17302, 34604, 96637, 193274, 386548, 497327, 994654, 1989308, 20390407, 40780814, 81561628]

約数ペア:

[(1, 81561628), (2, 40780814), (4, 20390407), (41, 1989308), (82, 994654), (164, 497327), (211, 386548), (422, 193274), (844, 96637), (2357, 34604), (4714, 17302), (8651, 9428)]