1276940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1303}}^1$

素因数の和:1326

約数の個数: 36

約数和(自身を含む): 3121776

約数和(自身を除く): 1844836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1303, 2606, 5212, 6515, 9121, 13030, 18242, 26060, 36484, 45605, 63847, 91210, 127694, 182420, 255388, 319235, 638470, 1276940]

約数ペア:

[(1, 1276940), (2, 638470), (4, 319235), (5, 255388), (7, 182420), (10, 127694), (14, 91210), (20, 63847), (28, 45605), (35, 36484), (49, 26060), (70, 18242), (98, 13030), (140, 9121), (196, 6515), (245, 5212), (490, 2606), (980, 1303)]