28628020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18119}}^1$

素因数の和:18207

約数の個数: 24

約数和(自身を含む): 60883200

約数和(自身を除く): 32255180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 18119, 36238, 72476, 90595, 181190, 362380, 1431401, 2862802, 5725604, 7157005, 14314010, 28628020]

約数ペア:

[(1, 28628020), (2, 14314010), (4, 7157005), (5, 5725604), (10, 2862802), (20, 1431401), (79, 362380), (158, 181190), (316, 90595), (395, 72476), (790, 36238), (1580, 18119)]