52161980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{457}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 118493760

約数和(自身を除く): 66331780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 457, 878, 914, 1756, 1828, 2195, 2285, 4390, 4570, 5707, 5941, 8780, 9140, 11414, 11882, 22828, 23764, 28535, 29705, 57070, 59410, 114140, 118820, 200623, 401246, 802492, 1003115, 2006230, 2608099, 4012460, 5216198, 10432396, 13040495, 26080990, 52161980]

約数ペア:

[(1, 52161980), (2, 26080990), (4, 13040495), (5, 10432396), (10, 5216198), (13, 4012460), (20, 2608099), (26, 2006230), (52, 1003115), (65, 802492), (130, 401246), (260, 200623), (439, 118820), (457, 114140), (878, 59410), (914, 57070), (1756, 29705), (1828, 28535), (2195, 23764), (2285, 22828), (4390, 11882), (4570, 11414), (5707, 9140), (5941, 8780)]