281412170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{4931}}^1$

素因数の和:5390

約数の個数: 32

約数和(自身を含む): 546860160

約数和(自身を除く): 265447990

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 439, 878, 2195, 4390, 4931, 5707, 9862, 11414, 24655, 28535, 49310, 57070, 64103, 128206, 320515, 641030, 2164709, 4329418, 10823545, 21647090, 28141217, 56282434, 140706085, 281412170]

約数ペア:

[(1, 281412170), (2, 140706085), (5, 56282434), (10, 28141217), (13, 21647090), (26, 10823545), (65, 4329418), (130, 2164709), (439, 641030), (878, 320515), (2195, 128206), (4390, 64103), (4931, 57070), (5707, 49310), (9862, 28535), (11414, 24655)]