20251665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{269}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 20183535

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 239, 269, 315, 717, 807, 1195, 1345, 1673, 1883, 2151, 2421, 3585, 4035, 5019, 5649, 8365, 9415, 10755, 12105, 15057, 16947, 25095, 28245, 64291, 75285, 84735, 192873, 321455, 450037, 578619, 964365, 1350111, 2250185, 2893095, 4050333, 6750555, 20251665]

約数ペア:

[(1, 20251665), (3, 6750555), (5, 4050333), (7, 2893095), (9, 2250185), (15, 1350111), (21, 964365), (35, 578619), (45, 450037), (63, 321455), (105, 192873), (239, 84735), (269, 75285), (315, 64291), (717, 28245), (807, 25095), (1195, 16947), (1345, 15057), (1673, 12105), (1883, 10755), (2151, 9415), (2421, 8365), (3585, 5649), (4035, 5019)]