20512139780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1391597}}^1$

素因数の和:1391684

約数の個数: 48

約数和(自身を含む): 47692846656

約数和(自身を除く): 27180706876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 1391597, 2783194, 5566388, 6957985, 13915970, 15307567, 27831940, 30615134, 61230268, 76537835, 93236999, 153075670, 186473998, 306151340, 372947996, 466184995, 932369990, 1025606989, 1864739980, 2051213978, 4102427956, 5128034945, 10256069890, 20512139780]

約数ペア:

[(1, 20512139780), (2, 10256069890), (4, 5128034945), (5, 4102427956), (10, 2051213978), (11, 1864739980), (20, 1025606989), (22, 932369990), (44, 466184995), (55, 372947996), (67, 306151340), (110, 186473998), (134, 153075670), (220, 93236999), (268, 76537835), (335, 61230268), (670, 30615134), (737, 27831940), (1340, 15307567), (1474, 13915970), (2948, 6957985), (3685, 5566388), (7370, 2783194), (14740, 1391597)]