28436000

素因数分解:

$2^5\times 5^3\times {\mathrm{7109}}^1$

素因数の和:7134

約数の個数: 48

約数和(自身を含む): 69877080

約数和(自身を除く): 41441080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 7109, 14218, 28436, 35545, 56872, 71090, 113744, 142180, 177725, 227488, 284360, 355450, 568720, 710900, 888625, 1137440, 1421800, 1777250, 2843600, 3554500, 5687200, 7109000, 14218000, 28436000]

約数ペア:

[(1, 28436000), (2, 14218000), (4, 7109000), (5, 5687200), (8, 3554500), (10, 2843600), (16, 1777250), (20, 1421800), (25, 1137440), (32, 888625), (40, 710900), (50, 568720), (80, 355450), (100, 284360), (125, 227488), (160, 177725), (200, 142180), (250, 113744), (400, 71090), (500, 56872), (800, 35545), (1000, 28436), (2000, 14218), (4000, 7109)]