28988392975

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1\times {\mathrm{1051}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 37475101440

約数和(自身を除く): 8486708465

約数列:

[1, 5, 25, 41, 71, 205, 355, 379, 1025, 1051, 1775, 1895, 2911, 5255, 9475, 14555, 15539, 26275, 26909, 43091, 72775, 74621, 77695, 134545, 215455, 373105, 388475, 398329, 672725, 1077275, 1103269, 1865525, 1991645, 3059461, 5516345, 9958225, 15297305, 16331489, 27581725, 28281359, 76486525, 81657445, 141406795, 408287225, 707033975, 1159535719, 5797678595, 28988392975]

約数ペア:

[(1, 28988392975), (5, 5797678595), (25, 1159535719), (41, 707033975), (71, 408287225), (205, 141406795), (355, 81657445), (379, 76486525), (1025, 28281359), (1051, 27581725), (1775, 16331489), (1895, 15297305), (2911, 9958225), (5255, 5516345), (9475, 3059461), (14555, 1991645), (15539, 1865525), (26275, 1103269), (26909, 1077275), (43091, 672725), (72775, 398329), (74621, 388475), (77695, 373105), (134545, 215455)]