20448900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{22721}}^1$

素因数の和:22741

約数の個数: 54

約数和(自身を含む): 64098762

約数和(自身を除く): 43649862

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 22721, 45442, 68163, 90884, 113605, 136326, 204489, 227210, 272652, 340815, 408978, 454420, 568025, 681630, 817956, 1022445, 1136050, 1363260, 1704075, 2044890, 2272100, 3408150, 4089780, 5112225, 6816300, 10224450, 20448900]

約数ペア:

[(1, 20448900), (2, 10224450), (3, 6816300), (4, 5112225), (5, 4089780), (6, 3408150), (9, 2272100), (10, 2044890), (12, 1704075), (15, 1363260), (18, 1136050), (20, 1022445), (25, 817956), (30, 681630), (36, 568025), (45, 454420), (50, 408978), (60, 340815), (75, 272652), (90, 227210), (100, 204489), (150, 136326), (180, 113605), (225, 90884), (300, 68163), (450, 45442), (900, 22721)]