20264985

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1283}}^1$

素因数の和:1316

約数の個数: 48

約数和(自身を含む): 39259584

約数和(自身を除く): 18994599

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 1053, 1215, 1283, 1755, 3159, 3849, 5265, 6415, 11547, 15795, 16679, 19245, 34641, 50037, 57735, 83395, 103923, 150111, 173205, 250185, 311769, 450333, 519615, 750555, 1350999, 1558845, 2251665, 4052997, 6754995, 20264985]

約数ペア:

[(1, 20264985), (3, 6754995), (5, 4052997), (9, 2251665), (13, 1558845), (15, 1350999), (27, 750555), (39, 519615), (45, 450333), (65, 311769), (81, 250185), (117, 173205), (135, 150111), (195, 103923), (243, 83395), (351, 57735), (405, 50037), (585, 34641), (1053, 19245), (1215, 16679), (1283, 15795), (1755, 11547), (3159, 6415), (3849, 5265)]