89290820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{32119}}^1$

素因数の和:32267

約数の個数: 24

約数和(自身を含む): 188865600

約数和(自身を除く): 99574780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 32119, 64238, 128476, 160595, 321190, 642380, 4464541, 8929082, 17858164, 22322705, 44645410, 89290820]

約数ペア:

[(1, 89290820), (2, 44645410), (4, 22322705), (5, 17858164), (10, 8929082), (20, 4464541), (139, 642380), (278, 321190), (556, 160595), (695, 128476), (1390, 64238), (2780, 32119)]