21279120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88663}}^1$

素因数の和:88679

約数の個数: 40

約数和(自身を含む): 65966016

約数和(自身を除く): 44686896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88663, 177326, 265989, 354652, 443315, 531978, 709304, 886630, 1063956, 1329945, 1418608, 1773260, 2127912, 2659890, 3546520, 4255824, 5319780, 7093040, 10639560, 21279120]

約数ペア:

[(1, 21279120), (2, 10639560), (3, 7093040), (4, 5319780), (5, 4255824), (6, 3546520), (8, 2659890), (10, 2127912), (12, 1773260), (15, 1418608), (16, 1329945), (20, 1063956), (24, 886630), (30, 709304), (40, 531978), (48, 443315), (60, 354652), (80, 265989), (120, 177326), (240, 88663)]