28570000

素因数分解:

$2^4\times 5^4\times {\mathrm{2857}}^1$

素因数の和:2885

約数の個数: 50

約数和(自身を含む): 69195038

約数和(自身を除く): 40625038

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 2857, 5000, 5714, 10000, 11428, 14285, 22856, 28570, 45712, 57140, 71425, 114280, 142850, 228560, 285700, 357125, 571400, 714250, 1142800, 1428500, 1785625, 2857000, 3571250, 5714000, 7142500, 14285000, 28570000]

約数ペア:

[(1, 28570000), (2, 14285000), (4, 7142500), (5, 5714000), (8, 3571250), (10, 2857000), (16, 1785625), (20, 1428500), (25, 1142800), (40, 714250), (50, 571400), (80, 357125), (100, 285700), (125, 228560), (200, 142850), (250, 114280), (400, 71425), (500, 57140), (625, 45712), (1000, 28570), (1250, 22856), (2000, 14285), (2500, 11428), (2857, 10000), (5000, 5714)]