21138960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88079}}^1$

素因数の和:88095

約数の個数: 40

約数和(自身を含む): 65531520

約数和(自身を除く): 44392560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88079, 176158, 264237, 352316, 440395, 528474, 704632, 880790, 1056948, 1321185, 1409264, 1761580, 2113896, 2642370, 3523160, 4227792, 5284740, 7046320, 10569480, 21138960]

約数ペア:

[(1, 21138960), (2, 10569480), (3, 7046320), (4, 5284740), (5, 4227792), (6, 3523160), (8, 2642370), (10, 2113896), (12, 1761580), (15, 1409264), (16, 1321185), (20, 1056948), (24, 880790), (30, 704632), (40, 528474), (48, 440395), (60, 352316), (80, 264237), (120, 176158), (240, 88079)]