261130625

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3511}}^1$

素因数の和:3555

約数の個数: 40

約数和(自身を含む): 394973568

約数和(自身を除く): 133842943

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 425, 595, 625, 875, 2125, 2975, 3511, 4375, 10625, 14875, 17555, 24577, 59687, 74375, 87775, 122885, 298435, 417809, 438875, 614425, 1492175, 2089045, 2194375, 3072125, 7460875, 10445225, 15360625, 37304375, 52226125, 261130625]

約数ペア:

[(1, 261130625), (5, 52226125), (7, 37304375), (17, 15360625), (25, 10445225), (35, 7460875), (85, 3072125), (119, 2194375), (125, 2089045), (175, 1492175), (425, 614425), (595, 438875), (625, 417809), (875, 298435), (2125, 122885), (2975, 87775), (3511, 74375), (4375, 59687), (10625, 24577), (14875, 17555)]