81805626

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{72139}}^1$

素因数の和:72160

約数の個数: 40

約数和(自身を含む): 209494560

約数和(自身を除く): 127688934

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 72139, 144278, 216417, 432834, 504973, 649251, 1009946, 1298502, 1514919, 1947753, 3029838, 3895506, 4544757, 5843259, 9089514, 11686518, 13634271, 27268542, 40902813, 81805626]

約数ペア:

[(1, 81805626), (2, 40902813), (3, 27268542), (6, 13634271), (7, 11686518), (9, 9089514), (14, 5843259), (18, 4544757), (21, 3895506), (27, 3029838), (42, 1947753), (54, 1514919), (63, 1298502), (81, 1009946), (126, 649251), (162, 504973), (189, 432834), (378, 216417), (567, 144278), (1134, 72139)]