21480840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59669}}^1$

素因数の和:59686

約数の個数: 48

約数和(自身を含む): 69813900

約数和(自身を除く): 48333060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 59669, 119338, 179007, 238676, 298345, 358014, 477352, 537021, 596690, 716028, 895035, 1074042, 1193380, 1432056, 1790070, 2148084, 2386760, 2685105, 3580140, 4296168, 5370210, 7160280, 10740420, 21480840]

約数ペア:

[(1, 21480840), (2, 10740420), (3, 7160280), (4, 5370210), (5, 4296168), (6, 3580140), (8, 2685105), (9, 2386760), (10, 2148084), (12, 1790070), (15, 1432056), (18, 1193380), (20, 1074042), (24, 895035), (30, 716028), (36, 596690), (40, 537021), (45, 477352), (60, 358014), (72, 298345), (90, 238676), (120, 179007), (180, 119338), (360, 59669)]