15121645

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 23901696

約数和(自身を除く): 8780051

約数列:

[1, 5, 7, 11, 31, 35, 49, 55, 77, 155, 181, 217, 245, 341, 385, 539, 905, 1085, 1267, 1519, 1705, 1991, 2387, 2695, 5611, 6335, 7595, 8869, 9955, 11935, 13937, 16709, 28055, 39277, 44345, 61721, 69685, 83545, 97559, 196385, 274939, 308605, 432047, 487795, 1374695, 2160235, 3024329, 15121645]

約数ペア:

[(1, 15121645), (5, 3024329), (7, 2160235), (11, 1374695), (31, 487795), (35, 432047), (49, 308605), (55, 274939), (77, 196385), (155, 97559), (181, 83545), (217, 69685), (245, 61721), (341, 44345), (385, 39277), (539, 28055), (905, 16709), (1085, 13937), (1267, 11935), (1519, 9955), (1705, 8869), (1991, 7595), (2387, 6335), (2695, 5611)]