261185375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 367701984

約数和(自身を除く): 106516609

約数列:

[1, 5, 11, 25, 41, 55, 113, 125, 205, 275, 451, 565, 1025, 1243, 1375, 1681, 2255, 2825, 4633, 5125, 6215, 8405, 11275, 14125, 18491, 23165, 31075, 42025, 50963, 56375, 92455, 115825, 155375, 189953, 210125, 254815, 462275, 579125, 949765, 1274075, 2089483, 2311375, 4748825, 6370375, 10447415, 23744125, 52237075, 261185375]

約数ペア:

[(1, 261185375), (5, 52237075), (11, 23744125), (25, 10447415), (41, 6370375), (55, 4748825), (113, 2311375), (125, 2089483), (205, 1274075), (275, 949765), (451, 579125), (565, 462275), (1025, 254815), (1243, 210125), (1375, 189953), (1681, 155375), (2255, 115825), (2825, 92455), (4633, 56375), (5125, 50963), (6215, 42025), (8405, 31075), (11275, 23165), (14125, 18491)]