261229745

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{1699}}^1$

素因数の和:1925

約数の個数: 32

約数和(自身を含む): 376012800

約数和(自身を除く): 114783055

約数列:

[1, 5, 7, 23, 35, 115, 161, 191, 805, 955, 1337, 1699, 4393, 6685, 8495, 11893, 21965, 30751, 39077, 59465, 153755, 195385, 273539, 324509, 1367695, 1622545, 2271563, 7463707, 11357815, 37318535, 52245949, 261229745]

約数ペア:

[(1, 261229745), (5, 52245949), (7, 37318535), (23, 11357815), (35, 7463707), (115, 2271563), (161, 1622545), (191, 1367695), (805, 324509), (955, 273539), (1337, 195385), (1699, 153755), (4393, 59465), (6685, 39077), (8495, 30751), (11893, 21965)]