22500

素因数分解:

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

素因数の和:30

約数の個数: 45

約数和(自身を含む): 71071

約数和(自身を除く): 48571

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 625, 750, 900, 1125, 1250, 1500, 1875, 2250, 2500, 3750, 4500, 5625, 7500, 11250, 22500]

約数ペア:

[(1, 22500), (2, 11250), (3, 7500), (4, 5625), (5, 4500), (6, 3750), (9, 2500), (10, 2250), (12, 1875), (15, 1500), (18, 1250), (20, 1125), (25, 900), (30, 750), (36, 625), (45, 500), (50, 450), (60, 375), (75, 300), (90, 250), (100, 225), (125, 180)]