20493115

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7085765

約数列:

[1, 5, 19, 23, 83, 95, 113, 115, 415, 437, 565, 1577, 1909, 2147, 2185, 2599, 7885, 9379, 9545, 10735, 12995, 36271, 46895, 49381, 178201, 181355, 215717, 246905, 891005, 1078585, 4098623, 20493115]

約数ペア:

[(1, 20493115), (5, 4098623), (19, 1078585), (23, 891005), (83, 246905), (95, 215717), (113, 181355), (115, 178201), (415, 49381), (437, 46895), (565, 36271), (1577, 12995), (1909, 10735), (2147, 9545), (2185, 9379), (2599, 7885)]