51678445

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 77801472

約数和(自身を除く): 26123027

約数列:

[1, 5, 7, 13, 35, 53, 65, 91, 265, 371, 455, 689, 1855, 2143, 3445, 4823, 10715, 15001, 24115, 27859, 75005, 113579, 139295, 195013, 567895, 795053, 975065, 1476527, 3975265, 7382635, 10335689, 51678445]

約数ペア:

[(1, 51678445), (5, 10335689), (7, 7382635), (13, 3975265), (35, 1476527), (53, 975065), (65, 795053), (91, 567895), (265, 195013), (371, 139295), (455, 113579), (689, 75005), (1855, 27859), (2143, 24115), (3445, 15001), (4823, 10715)]