19505005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2753}}^1$

素因数の和:2880

約数の個数: 16

約数和(自身を含む): 25446960

約数和(自身を除く): 5941955

約数列:

[1, 5, 13, 65, 109, 545, 1417, 2753, 7085, 13765, 35789, 178945, 300077, 1500385, 3901001, 19505005]

約数ペア:

[(1, 19505005), (5, 3901001), (13, 1500385), (65, 300077), (109, 178945), (545, 35789), (1417, 13765), (2753, 7085)]