13405975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^2$

素因数の和:132

約数の個数: 36

約数和(自身を含む): 19228680

約数和(自身を除く): 5822705

約数列:

[1, 5, 11, 25, 29, 41, 55, 145, 205, 275, 319, 451, 725, 1025, 1189, 1595, 1681, 2255, 5945, 7975, 8405, 11275, 13079, 18491, 29725, 42025, 48749, 65395, 92455, 243745, 326975, 462275, 536239, 1218725, 2681195, 13405975]

約数ペア:

[(1, 13405975), (5, 2681195), (11, 1218725), (25, 536239), (29, 462275), (41, 326975), (55, 243745), (145, 92455), (205, 65395), (275, 48749), (319, 42025), (451, 29725), (725, 18491), (1025, 13079), (1189, 11275), (1595, 8405), (1681, 7975), (2255, 5945)]