80285000

素因数分解:

$2^3\times 5^4\times {\mathrm{16057}}^1$

素因数の和:16083

約数の個数: 40

約数和(自身を含む): 188119470

約数和(自身を除く): 107834470

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 16057, 32114, 64228, 80285, 128456, 160570, 321140, 401425, 642280, 802850, 1605700, 2007125, 3211400, 4014250, 8028500, 10035625, 16057000, 20071250, 40142500, 80285000]

約数ペア:

[(1, 80285000), (2, 40142500), (4, 20071250), (5, 16057000), (8, 10035625), (10, 8028500), (20, 4014250), (25, 3211400), (40, 2007125), (50, 1605700), (100, 802850), (125, 642280), (200, 401425), (250, 321140), (500, 160570), (625, 128456), (1000, 80285), (1250, 64228), (2500, 32114), (5000, 16057)]