21690960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90379}}^1$

素因数の和:90395

約数の個数: 40

約数和(自身を含む): 67242720

約数和(自身を除く): 45551760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90379, 180758, 271137, 361516, 451895, 542274, 723032, 903790, 1084548, 1355685, 1446064, 1807580, 2169096, 2711370, 3615160, 4338192, 5422740, 7230320, 10845480, 21690960]

約数ペア:

[(1, 21690960), (2, 10845480), (3, 7230320), (4, 5422740), (5, 4338192), (6, 3615160), (8, 2711370), (10, 2169096), (12, 1807580), (15, 1446064), (16, 1355685), (20, 1084548), (24, 903790), (30, 723032), (40, 542274), (48, 451895), (60, 361516), (80, 271137), (120, 180758), (240, 90379)]