2020982805

素因数分解:

$3^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{20879}}^1$

素因数の和:21135

約数の個数: 40

約数和(自身を含む): 3638131200

約数和(自身を除く): 1617148395

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 239, 405, 717, 1195, 2151, 3585, 6453, 10755, 19359, 20879, 32265, 62637, 96795, 104395, 187911, 313185, 563733, 939555, 1691199, 2818665, 4990081, 8455995, 14970243, 24950405, 44910729, 74851215, 134732187, 224553645, 404196561, 673660935, 2020982805]

約数ペア:

[(1, 2020982805), (3, 673660935), (5, 404196561), (9, 224553645), (15, 134732187), (27, 74851215), (45, 44910729), (81, 24950405), (135, 14970243), (239, 8455995), (405, 4990081), (717, 2818665), (1195, 1691199), (2151, 939555), (3585, 563733), (6453, 313185), (10755, 187911), (19359, 104395), (20879, 96795), (32265, 62637)]