81788778

素因数分解:

$2^1\times 3^4\times {\mathrm{313}}^1\times {\mathrm{1613}}^1$

素因数の和:1940

約数の個数: 40

約数和(自身を含む): 183966948

約数和(自身を除く): 102178170

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 313, 626, 939, 1613, 1878, 2817, 3226, 4839, 5634, 8451, 9678, 14517, 16902, 25353, 29034, 43551, 50706, 87102, 130653, 261306, 504869, 1009738, 1514607, 3029214, 4543821, 9087642, 13631463, 27262926, 40894389, 81788778]

約数ペア:

[(1, 81788778), (2, 40894389), (3, 27262926), (6, 13631463), (9, 9087642), (18, 4543821), (27, 3029214), (54, 1514607), (81, 1009738), (162, 504869), (313, 261306), (626, 130653), (939, 87102), (1613, 50706), (1878, 43551), (2817, 29034), (3226, 25353), (4839, 16902), (5634, 14517), (8451, 9678)]