18245225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 24194880

約数和(自身を除く): 5949655

約数列:

[1, 5, 19, 25, 71, 95, 355, 475, 541, 1349, 1775, 2705, 6745, 10279, 13525, 33725, 38411, 51395, 192055, 256975, 729809, 960275, 3649045, 18245225]

約数ペア:

[(1, 18245225), (5, 3649045), (19, 960275), (25, 729809), (71, 256975), (95, 192055), (355, 51395), (475, 38411), (541, 33725), (1349, 13525), (1775, 10279), (2705, 6745)]