81217320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{587}}^1\times {\mathrm{1153}}^1$

素因数の和:1754

約数の個数: 64

約数和(自身を含む): 244278720

約数和(自身を除く): 163061400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 587, 1153, 1174, 1761, 2306, 2348, 2935, 3459, 3522, 4612, 4696, 5765, 5870, 6918, 7044, 8805, 9224, 11530, 11740, 13836, 14088, 17295, 17610, 23060, 23480, 27672, 34590, 35220, 46120, 69180, 70440, 138360, 676811, 1353622, 2030433, 2707244, 3384055, 4060866, 5414488, 6768110, 8121732, 10152165, 13536220, 16243464, 20304330, 27072440, 40608660, 81217320]

約数ペア:

[(1, 81217320), (2, 40608660), (3, 27072440), (4, 20304330), (5, 16243464), (6, 13536220), (8, 10152165), (10, 8121732), (12, 6768110), (15, 5414488), (20, 4060866), (24, 3384055), (30, 2707244), (40, 2030433), (60, 1353622), (120, 676811), (587, 138360), (1153, 70440), (1174, 69180), (1761, 46120), (2306, 35220), (2348, 34590), (2935, 27672), (3459, 23480), (3522, 23060), (4612, 17610), (4696, 17295), (5765, 14088), (5870, 13836), (6918, 11740), (7044, 11530), (8805, 9224)]