20308000

素因数分解:

$2^5\times 5^3\times {\mathrm{5077}}^1$

素因数の和:5102

約数の個数: 48

約数和(自身を含む): 49906584

約数和(自身を除く): 29598584

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, 5077, 10154, 20308, 25385, 40616, 50770, 81232, 101540, 126925, 162464, 203080, 253850, 406160, 507700, 634625, 812320, 1015400, 1269250, 2030800, 2538500, 4061600, 5077000, 10154000, 20308000]

約数ペア:

[(1, 20308000), (2, 10154000), (4, 5077000), (5, 4061600), (8, 2538500), (10, 2030800), (16, 1269250), (20, 1015400), (25, 812320), (32, 634625), (40, 507700), (50, 406160), (80, 253850), (100, 203080), (125, 162464), (160, 126925), (200, 101540), (250, 81232), (400, 50770), (500, 40616), (800, 25385), (1000, 20308), (2000, 10154), (4000, 5077)]