2490904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 5155920

約数和(自身を除く): 2665016

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 557, 559, 1114, 1118, 2228, 2236, 4456, 4472, 7241, 14482, 23951, 28964, 47902, 57928, 95804, 191608, 311363, 622726, 1245452, 2490904]

約数ペア:

[(1, 2490904), (2, 1245452), (4, 622726), (8, 311363), (13, 191608), (26, 95804), (43, 57928), (52, 47902), (86, 28964), (104, 23951), (172, 14482), (344, 7241), (557, 4472), (559, 4456), (1114, 2236), (1118, 2228)]