15000

素因数分解:

$2^3\times 3^1\times 5^4$

素因数の和:29

約数の個数: 40

約数和(自身を含む): 46860

約数和(自身を除く): 31860

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, 625, 750, 1000, 1250, 1500, 1875, 2500, 3000, 3750, 5000, 7500, 15000]

約数ペア:

[(1, 15000), (2, 7500), (3, 5000), (4, 3750), (5, 3000), (6, 2500), (8, 1875), (10, 1500), (12, 1250), (15, 1000), (20, 750), (24, 625), (25, 600), (30, 500), (40, 375), (50, 300), (60, 250), (75, 200), (100, 150), (120, 125)]