85385440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10891}}^1$

素因数の和:10920

約数の個数: 72

約数和(自身を含む): 234679032

約数和(自身を除く): 149293592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10891, 21782, 43564, 54455, 76237, 87128, 108910, 152474, 174256, 217820, 304948, 348512, 381185, 435640, 533659, 609896, 762370, 871280, 1067318, 1219792, 1524740, 1742560, 2134636, 2439584, 2668295, 3049480, 4269272, 5336590, 6098960, 8538544, 10673180, 12197920, 17077088, 21346360, 42692720, 85385440]

約数ペア:

[(1, 85385440), (2, 42692720), (4, 21346360), (5, 17077088), (7, 12197920), (8, 10673180), (10, 8538544), (14, 6098960), (16, 5336590), (20, 4269272), (28, 3049480), (32, 2668295), (35, 2439584), (40, 2134636), (49, 1742560), (56, 1524740), (70, 1219792), (80, 1067318), (98, 871280), (112, 762370), (140, 609896), (160, 533659), (196, 435640), (224, 381185), (245, 348512), (280, 304948), (392, 217820), (490, 174256), (560, 152474), (784, 108910), (980, 87128), (1120, 76237), (1568, 54455), (1960, 43564), (3920, 21782), (7840, 10891)]