19953900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{22171}}^1$

素因数の和:22191

約数の個数: 54

約数和(自身を含む): 62547212

約数和(自身を除く): 42593312

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, 22171, 44342, 66513, 88684, 110855, 133026, 199539, 221710, 266052, 332565, 399078, 443420, 554275, 665130, 798156, 997695, 1108550, 1330260, 1662825, 1995390, 2217100, 3325650, 3990780, 4988475, 6651300, 9976950, 19953900]

約数ペア:

[(1, 19953900), (2, 9976950), (3, 6651300), (4, 4988475), (5, 3990780), (6, 3325650), (9, 2217100), (10, 1995390), (12, 1662825), (15, 1330260), (18, 1108550), (20, 997695), (25, 798156), (30, 665130), (36, 554275), (45, 443420), (50, 399078), (60, 332565), (75, 266052), (90, 221710), (100, 199539), (150, 133026), (180, 110855), (225, 88684), (300, 66513), (450, 44342), (900, 22171)]