1138819840

素因数分解:

$2^8\times 5^1\times {\mathrm{889703}}^1$

素因数の和:889724

約数の個数: 36

約数和(自身を含む): 2727832464

約数和(自身を除く): 1589012624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 889703, 1779406, 3558812, 4448515, 7117624, 8897030, 14235248, 17794060, 28470496, 35588120, 56940992, 71176240, 113881984, 142352480, 227763968, 284704960, 569409920, 1138819840]

約数ペア:

[(1, 1138819840), (2, 569409920), (4, 284704960), (5, 227763968), (8, 142352480), (10, 113881984), (16, 71176240), (20, 56940992), (32, 35588120), (40, 28470496), (64, 17794060), (80, 14235248), (128, 8897030), (160, 7117624), (256, 4448515), (320, 3558812), (640, 1779406), (1280, 889703)]