128475985

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{2909}}^1$

素因数の和:3009

約数の個数: 24

約数和(自身を含む): 171841320

約数和(自身を除く): 43365335

約数列:

[1, 5, 11, 55, 73, 121, 365, 605, 803, 2909, 4015, 8833, 14545, 31999, 44165, 159995, 212357, 351989, 1061785, 1759945, 2335927, 11679635, 25695197, 128475985]

約数ペア:

[(1, 128475985), (5, 25695197), (11, 11679635), (55, 2335927), (73, 1759945), (121, 1061785), (365, 351989), (605, 212357), (803, 159995), (2909, 44165), (4015, 31999), (8833, 14545)]