128436728

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{32303}}^1$

素因数の和:32387

約数の個数: 32

約数和(自身を含む): 279106560

約数和(自身を除く): 150669832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 32303, 64606, 129212, 226121, 258424, 452242, 904484, 1808968, 2293513, 4587026, 9174052, 16054591, 18348104, 32109182, 64218364, 128436728]

約数ペア:

[(1, 128436728), (2, 64218364), (4, 32109182), (7, 18348104), (8, 16054591), (14, 9174052), (28, 4587026), (56, 2293513), (71, 1808968), (142, 904484), (284, 452242), (497, 258424), (568, 226121), (994, 129212), (1988, 64606), (3976, 32303)]