27708660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{21991}}^1$

素因数の和:22013

約数の個数: 72

約数和(自身を含む): 96061056

約数和(自身を除く): 68352396

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 21991, 43982, 65973, 87964, 109955, 131946, 153937, 197919, 219910, 263892, 307874, 329865, 395838, 439820, 461811, 615748, 659730, 769685, 791676, 923622, 989595, 1319460, 1385433, 1539370, 1847244, 1979190, 2309055, 2770866, 3078740, 3958380, 4618110, 5541732, 6927165, 9236220, 13854330, 27708660]

約数ペア:

[(1, 27708660), (2, 13854330), (3, 9236220), (4, 6927165), (5, 5541732), (6, 4618110), (7, 3958380), (9, 3078740), (10, 2770866), (12, 2309055), (14, 1979190), (15, 1847244), (18, 1539370), (20, 1385433), (21, 1319460), (28, 989595), (30, 923622), (35, 791676), (36, 769685), (42, 659730), (45, 615748), (60, 461811), (63, 439820), (70, 395838), (84, 329865), (90, 307874), (105, 263892), (126, 219910), (140, 197919), (180, 153937), (210, 131946), (252, 109955), (315, 87964), (420, 65973), (630, 43982), (1260, 21991)]