128059820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{914713}}^1$

素因数の和:914729

約数の個数: 24

約数和(自身を含む): 307343904

約数和(自身を除く): 179284084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 914713, 1829426, 3658852, 4573565, 6402991, 9147130, 12805982, 18294260, 25611964, 32014955, 64029910, 128059820]

約数ペア:

[(1, 128059820), (2, 64029910), (4, 32014955), (5, 25611964), (7, 18294260), (10, 12805982), (14, 9147130), (20, 6402991), (28, 4573565), (35, 3658852), (70, 1829426), (140, 914713)]