681581872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1374157}}^1$

素因数の和:1374196

約数の個数: 20

約数和(自身を含む): 1363164736

約数和(自身を除く): 681582864

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1374157, 2748314, 5496628, 10993256, 21986512, 42598867, 85197734, 170395468, 340790936, 681581872]

約数ペア:

[(1, 681581872), (2, 340790936), (4, 170395468), (8, 85197734), (16, 42598867), (31, 21986512), (62, 10993256), (124, 5496628), (248, 2748314), (496, 1374157)]