28922205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2089}}^1$

素因数の和:2181

約数の個数: 32

約数和(自身を含む): 50561280

約数和(自身を除く): 21639075

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 195, 213, 355, 923, 1065, 2089, 2769, 4615, 6267, 10445, 13845, 27157, 31335, 81471, 135785, 148319, 407355, 444957, 741595, 1928147, 2224785, 5784441, 9640735, 28922205]

約数ペア:

[(1, 28922205), (3, 9640735), (5, 5784441), (13, 2224785), (15, 1928147), (39, 741595), (65, 444957), (71, 407355), (195, 148319), (213, 135785), (355, 81471), (923, 31335), (1065, 27157), (2089, 13845), (2769, 10445), (4615, 6267)]