20571000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{6857}}^1$

素因数の和:6881

約数の個数: 64

約数和(自身を含む): 64190880

約数和(自身を除く): 43619880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 6857, 13714, 20571, 27428, 34285, 41142, 54856, 68570, 82284, 102855, 137140, 164568, 171425, 205710, 274280, 342850, 411420, 514275, 685700, 822840, 857125, 1028550, 1371400, 1714250, 2057100, 2571375, 3428500, 4114200, 5142750, 6857000, 10285500, 20571000]

約数ペア:

[(1, 20571000), (2, 10285500), (3, 6857000), (4, 5142750), (5, 4114200), (6, 3428500), (8, 2571375), (10, 2057100), (12, 1714250), (15, 1371400), (20, 1028550), (24, 857125), (25, 822840), (30, 685700), (40, 514275), (50, 411420), (60, 342850), (75, 274280), (100, 205710), (120, 171425), (125, 164568), (150, 137140), (200, 102855), (250, 82284), (300, 68570), (375, 54856), (500, 41142), (600, 34285), (750, 27428), (1000, 20571), (1500, 13714), (3000, 6857)]