128843960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{460157}}^1$

素因数の和:460175

約数の個数: 32

約数和(自身を含む): 331313760

約数和(自身を除く): 202469800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 460157, 920314, 1840628, 2300785, 3221099, 3681256, 4601570, 6442198, 9203140, 12884396, 16105495, 18406280, 25768792, 32210990, 64421980, 128843960]

約数ペア:

[(1, 128843960), (2, 64421980), (4, 32210990), (5, 25768792), (7, 18406280), (8, 16105495), (10, 12884396), (14, 9203140), (20, 6442198), (28, 4601570), (35, 3681256), (40, 3221099), (56, 2300785), (70, 1840628), (140, 920314), (280, 460157)]