1640478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:432

約数の個数: 32

約数和(自身を含む): 3790080

約数和(自身を除く): 2149602

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 139, 278, 281, 417, 562, 834, 843, 973, 1686, 1946, 1967, 2919, 3934, 5838, 5901, 11802, 39059, 78118, 117177, 234354, 273413, 546826, 820239, 1640478]

約数ペア:

[(1, 1640478), (2, 820239), (3, 546826), (6, 273413), (7, 234354), (14, 117177), (21, 78118), (42, 39059), (139, 11802), (278, 5901), (281, 5838), (417, 3934), (562, 2919), (834, 1967), (843, 1946), (973, 1686)]