127555840

素因数分解:

$2^8\times 5^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 307581120

約数和(自身を除く): 180025280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 227, 256, 320, 439, 454, 640, 878, 908, 1135, 1280, 1756, 1816, 2195, 2270, 3512, 3632, 4390, 4540, 7024, 7264, 8780, 9080, 14048, 14528, 17560, 18160, 28096, 29056, 35120, 36320, 56192, 58112, 70240, 72640, 99653, 112384, 140480, 145280, 199306, 280960, 290560, 398612, 498265, 561920, 797224, 996530, 1594448, 1993060, 3188896, 3986120, 6377792, 7972240, 12755584, 15944480, 25511168, 31888960, 63777920, 127555840]

約数ペア:

[(1, 127555840), (2, 63777920), (4, 31888960), (5, 25511168), (8, 15944480), (10, 12755584), (16, 7972240), (20, 6377792), (32, 3986120), (40, 3188896), (64, 1993060), (80, 1594448), (128, 996530), (160, 797224), (227, 561920), (256, 498265), (320, 398612), (439, 290560), (454, 280960), (640, 199306), (878, 145280), (908, 140480), (1135, 112384), (1280, 99653), (1756, 72640), (1816, 70240), (2195, 58112), (2270, 56192), (3512, 36320), (3632, 35120), (4390, 29056), (4540, 28096), (7024, 18160), (7264, 17560), (8780, 14528), (9080, 14048)]