28657288

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3659}}^1$

素因数の和:3765

約数の個数: 32

約数和(自身を含む): 59292000

約数和(自身を除く): 30634712

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 3659, 3916, 7318, 7832, 14636, 29272, 40249, 80498, 160996, 321992, 325651, 651302, 1302604, 2605208, 3582161, 7164322, 14328644, 28657288]

約数ペア:

[(1, 28657288), (2, 14328644), (4, 7164322), (8, 3582161), (11, 2605208), (22, 1302604), (44, 651302), (88, 325651), (89, 321992), (178, 160996), (356, 80498), (712, 40249), (979, 29272), (1958, 14636), (3659, 7832), (3916, 7318)]