19784880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27479}}^1$

素因数の和:27498

約数の個数: 60

約数和(自身を含む): 66446640

約数和(自身を除く): 46661760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27479, 54958, 82437, 109916, 137395, 164874, 219832, 247311, 274790, 329748, 412185, 439664, 494622, 549580, 659496, 824370, 989244, 1099160, 1236555, 1318992, 1648740, 1978488, 2198320, 2473110, 3297480, 3956976, 4946220, 6594960, 9892440, 19784880]

約数ペア:

[(1, 19784880), (2, 9892440), (3, 6594960), (4, 4946220), (5, 3956976), (6, 3297480), (8, 2473110), (9, 2198320), (10, 1978488), (12, 1648740), (15, 1318992), (16, 1236555), (18, 1099160), (20, 989244), (24, 824370), (30, 659496), (36, 549580), (40, 494622), (45, 439664), (48, 412185), (60, 329748), (72, 274790), (80, 247311), (90, 219832), (120, 164874), (144, 137395), (180, 109916), (240, 82437), (360, 54958), (720, 27479)]