128545480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{459091}}^1$

素因数の和:459109

約数の個数: 32

約数和(自身を含む): 330546240

約数和(自身を除く): 202000760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 459091, 918182, 1836364, 2295455, 3213637, 3672728, 4590910, 6427274, 9181820, 12854548, 16068185, 18363640, 25709096, 32136370, 64272740, 128545480]

約数ペア:

[(1, 128545480), (2, 64272740), (4, 32136370), (5, 25709096), (7, 18363640), (8, 16068185), (10, 12854548), (14, 9181820), (20, 6427274), (28, 4590910), (35, 3672728), (40, 3213637), (56, 2295455), (70, 1836364), (140, 918182), (280, 459091)]