12991864

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 25077600

約数和(自身を除く): 12085736

約数列:

[1, 2, 4, 8, 71, 89, 142, 178, 257, 284, 356, 514, 568, 712, 1028, 2056, 6319, 12638, 18247, 22873, 25276, 36494, 45746, 50552, 72988, 91492, 145976, 182984, 1623983, 3247966, 6495932, 12991864]

約数ペア:

[(1, 12991864), (2, 6495932), (4, 3247966), (8, 1623983), (71, 182984), (89, 145976), (142, 91492), (178, 72988), (257, 50552), (284, 45746), (356, 36494), (514, 25276), (568, 22873), (712, 18247), (1028, 12638), (2056, 6319)]