1245712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 40

約数和(自身を含む): 2671704

約数和(自身を除く): 1425992

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 113, 208, 212, 226, 424, 452, 689, 848, 904, 1378, 1469, 1808, 2756, 2938, 5512, 5876, 5989, 11024, 11752, 11978, 23504, 23956, 47912, 77857, 95824, 155714, 311428, 622856, 1245712]

約数ペア:

[(1, 1245712), (2, 622856), (4, 311428), (8, 155714), (13, 95824), (16, 77857), (26, 47912), (52, 23956), (53, 23504), (104, 11978), (106, 11752), (113, 11024), (208, 5989), (212, 5876), (226, 5512), (424, 2938), (452, 2756), (689, 1808), (848, 1469), (904, 1378)]