389972025

素因数分解:

$3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{15901}}^1$

素因数の和:16026

約数の個数: 36

約数和(自身を含む): 704935660

約数和(自身を除く): 314963635

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 225, 327, 545, 981, 1635, 2725, 4905, 8175, 15901, 24525, 47703, 79505, 143109, 238515, 397525, 715545, 1192575, 1733209, 3577725, 5199627, 8666045, 15598881, 25998135, 43330225, 77994405, 129990675, 389972025]

約数ペア:

[(1, 389972025), (3, 129990675), (5, 77994405), (9, 43330225), (15, 25998135), (25, 15598881), (45, 8666045), (75, 5199627), (109, 3577725), (225, 1733209), (327, 1192575), (545, 715545), (981, 397525), (1635, 238515), (2725, 143109), (4905, 79505), (8175, 47703), (15901, 24525)]