55520225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1009}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 72138240

約数和(自身を除く): 16618015

約数列:

[1, 5, 25, 31, 71, 155, 355, 775, 1009, 1775, 2201, 5045, 11005, 25225, 31279, 55025, 71639, 156395, 358195, 781975, 1790975, 2220809, 11104045, 55520225]

約数ペア:

[(1, 55520225), (5, 11104045), (25, 2220809), (31, 1790975), (71, 781975), (155, 358195), (355, 156395), (775, 71639), (1009, 55025), (1775, 31279), (2201, 25225), (5045, 11005)]