19927925

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 25534080

約数和(自身を除く): 5606155

約数列:

[1, 5, 25, 71, 103, 109, 355, 515, 545, 1775, 2575, 2725, 7313, 7739, 11227, 36565, 38695, 56135, 182825, 193475, 280675, 797117, 3985585, 19927925]

約数ペア:

[(1, 19927925), (5, 3985585), (25, 797117), (71, 280675), (103, 193475), (109, 182825), (355, 56135), (515, 38695), (545, 36565), (1775, 11227), (2575, 7739), (2725, 7313)]