87365380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{256957}}^1$

素因数の和:256983

約数の個数: 24

約数和(自身を含む): 194260248

約数和(自身を除く): 106894868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 256957, 513914, 1027828, 1284785, 2569570, 4368269, 5139140, 8736538, 17473076, 21841345, 43682690, 87365380]

約数ペア:

[(1, 87365380), (2, 43682690), (4, 21841345), (5, 17473076), (10, 8736538), (17, 5139140), (20, 4368269), (34, 2569570), (68, 1284785), (85, 1027828), (170, 513914), (340, 256957)]