64907780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{463627}}^1$

素因数の和:463643

約数の個数: 24

約数和(自身を含む): 155779008

約数和(自身を除く): 90871228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 463627, 927254, 1854508, 2318135, 3245389, 4636270, 6490778, 9272540, 12981556, 16226945, 32453890, 64907780]

約数ペア:

[(1, 64907780), (2, 32453890), (4, 16226945), (5, 12981556), (7, 9272540), (10, 6490778), (14, 4636270), (20, 3245389), (28, 2318135), (35, 1854508), (70, 927254), (140, 463627)]