639311864

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{65557}}^1$

素因数の和:65639

約数の個数: 32

約数和(自身を含む): 1274447520

約数和(自身を除く): 635135656

約数列:

[1, 2, 4, 8, 23, 46, 53, 92, 106, 184, 212, 424, 1219, 2438, 4876, 9752, 65557, 131114, 262228, 524456, 1507811, 3015622, 3474521, 6031244, 6949042, 12062488, 13898084, 27796168, 79913983, 159827966, 319655932, 639311864]

約数ペア:

[(1, 639311864), (2, 319655932), (4, 159827966), (8, 79913983), (23, 27796168), (46, 13898084), (53, 12062488), (92, 6949042), (106, 6031244), (184, 3474521), (212, 3015622), (424, 1507811), (1219, 524456), (2438, 262228), (4876, 131114), (9752, 65557)]