20869460

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7507}}^1$

素因数の和:7655

約数の個数: 24

約数和(自身を含む): 44147040

約数和(自身を除く): 23277580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7507, 15014, 30028, 37535, 75070, 150140, 1043473, 2086946, 4173892, 5217365, 10434730, 20869460]

約数ペア:

[(1, 20869460), (2, 10434730), (4, 5217365), (5, 4173892), (10, 2086946), (20, 1043473), (139, 150140), (278, 75070), (556, 37535), (695, 30028), (1390, 15014), (2780, 7507)]