31411328

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:509

約数の個数: 64

約数和(自身を含む): 69115200

約数和(自身を除く): 37703872

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 344, 416, 439, 559, 688, 832, 878, 1118, 1376, 1664, 1756, 2236, 2752, 3512, 4472, 5504, 5707, 7024, 8944, 11414, 14048, 17888, 18877, 22828, 28096, 35776, 37754, 45656, 56192, 71552, 75508, 91312, 151016, 182624, 245401, 302032, 365248, 490802, 604064, 730496, 981604, 1208128, 1963208, 2416256, 3926416, 7852832, 15705664, 31411328]

約数ペア:

[(1, 31411328), (2, 15705664), (4, 7852832), (8, 3926416), (13, 2416256), (16, 1963208), (26, 1208128), (32, 981604), (43, 730496), (52, 604064), (64, 490802), (86, 365248), (104, 302032), (128, 245401), (172, 182624), (208, 151016), (344, 91312), (416, 75508), (439, 71552), (559, 56192), (688, 45656), (832, 37754), (878, 35776), (1118, 28096), (1376, 22828), (1664, 18877), (1756, 17888), (2236, 14048), (2752, 11414), (3512, 8944), (4472, 7024), (5504, 5707)]