257431122

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{487}}^1$

素因数の和:765

約数の個数: 80

約数和(自身を含む): 624964032

約数和(自身を除く): 367532910

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 251, 351, 487, 502, 702, 753, 974, 1053, 1461, 1506, 2106, 2259, 2922, 3263, 4383, 4518, 6331, 6526, 6777, 8766, 9789, 12662, 13149, 13554, 18993, 19578, 20331, 26298, 29367, 37986, 39447, 40662, 56979, 58734, 78894, 88101, 113958, 122237, 170937, 176202, 244474, 264303, 341874, 366711, 512811, 528606, 733422, 1025622, 1100133, 1589081, 2200266, 3178162, 3300399, 4767243, 6600798, 9534486, 9901197, 14301729, 19802394, 28603458, 42905187, 85810374, 128715561, 257431122]

約数ペア:

[(1, 257431122), (2, 128715561), (3, 85810374), (6, 42905187), (9, 28603458), (13, 19802394), (18, 14301729), (26, 9901197), (27, 9534486), (39, 6600798), (54, 4767243), (78, 3300399), (81, 3178162), (117, 2200266), (162, 1589081), (234, 1100133), (251, 1025622), (351, 733422), (487, 528606), (502, 512811), (702, 366711), (753, 341874), (974, 264303), (1053, 244474), (1461, 176202), (1506, 170937), (2106, 122237), (2259, 113958), (2922, 88101), (3263, 78894), (4383, 58734), (4518, 56979), (6331, 40662), (6526, 39447), (6777, 37986), (8766, 29367), (9789, 26298), (12662, 20331), (13149, 19578), (13554, 18993)]