25856416

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 57244320

約数和(自身を除く): 31387904

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 43, 46, 76, 86, 92, 152, 172, 184, 304, 344, 368, 437, 608, 688, 736, 817, 874, 989, 1376, 1634, 1748, 1849, 1978, 3268, 3496, 3698, 3956, 6536, 6992, 7396, 7912, 13072, 13984, 14792, 15824, 18791, 26144, 29584, 31648, 35131, 37582, 42527, 59168, 70262, 75164, 85054, 140524, 150328, 170108, 281048, 300656, 340216, 562096, 601312, 680432, 808013, 1124192, 1360864, 1616026, 3232052, 6464104, 12928208, 25856416]

約数ペア:

[(1, 25856416), (2, 12928208), (4, 6464104), (8, 3232052), (16, 1616026), (19, 1360864), (23, 1124192), (32, 808013), (38, 680432), (43, 601312), (46, 562096), (76, 340216), (86, 300656), (92, 281048), (152, 170108), (172, 150328), (184, 140524), (304, 85054), (344, 75164), (368, 70262), (437, 59168), (608, 42527), (688, 37582), (736, 35131), (817, 31648), (874, 29584), (989, 26144), (1376, 18791), (1634, 15824), (1748, 14792), (1849, 13984), (1978, 13072), (3268, 7912), (3496, 7396), (3698, 6992), (3956, 6536)]