28520713

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 6702839

約数列:

[1, 13, 17, 23, 31, 181, 221, 299, 391, 403, 527, 713, 2353, 3077, 4163, 5083, 5611, 6851, 9269, 12121, 40001, 54119, 70771, 72943, 95387, 129053, 157573, 920023, 1240031, 1677689, 2193901, 28520713]

約数ペア:

[(1, 28520713), (13, 2193901), (17, 1677689), (23, 1240031), (31, 920023), (181, 157573), (221, 129053), (299, 95387), (391, 72943), (403, 70771), (527, 54119), (713, 40001), (2353, 12121), (3077, 9269), (4163, 6851), (5083, 5611)]