81287168

素因数分解:

$2^{11}\times {\mathrm{19}}^1\times {\mathrm{2089}}^1$

素因数の和:2130

約数の個数: 48

約数和(自身を含む): 171171000

約数和(自身を除く): 89883832

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1024, 1216, 2048, 2089, 2432, 4178, 4864, 8356, 9728, 16712, 19456, 33424, 38912, 39691, 66848, 79382, 133696, 158764, 267392, 317528, 534784, 635056, 1069568, 1270112, 2139136, 2540224, 4278272, 5080448, 10160896, 20321792, 40643584, 81287168]

約数ペア:

[(1, 81287168), (2, 40643584), (4, 20321792), (8, 10160896), (16, 5080448), (19, 4278272), (32, 2540224), (38, 2139136), (64, 1270112), (76, 1069568), (128, 635056), (152, 534784), (256, 317528), (304, 267392), (512, 158764), (608, 133696), (1024, 79382), (1216, 66848), (2048, 39691), (2089, 38912), (2432, 33424), (4178, 19456), (4864, 16712), (8356, 9728)]