81424538

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 144057600

約数和(自身を除く): 62633062

約数列:

[1, 2, 13, 19, 26, 31, 38, 62, 169, 247, 338, 403, 409, 494, 589, 806, 818, 1178, 3211, 5239, 5317, 6422, 7657, 7771, 10478, 10634, 12679, 15314, 15542, 25358, 69121, 99541, 101023, 138242, 164827, 199082, 202046, 240901, 329654, 481802, 1313299, 2142751, 2626598, 3131713, 4285502, 6263426, 40712269, 81424538]

約数ペア:

[(1, 81424538), (2, 40712269), (13, 6263426), (19, 4285502), (26, 3131713), (31, 2626598), (38, 2142751), (62, 1313299), (169, 481802), (247, 329654), (338, 240901), (403, 202046), (409, 199082), (494, 164827), (589, 138242), (806, 101023), (818, 99541), (1178, 69121), (3211, 25358), (5239, 15542), (5317, 15314), (6422, 12679), (7657, 10634), (7771, 10478)]