19040660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 42638400

約数和(自身を除く): 23597740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 563, 890, 1126, 1691, 1780, 2252, 2815, 3382, 5630, 6764, 8455, 10697, 11260, 16910, 21394, 33820, 42788, 50107, 53485, 100214, 106970, 200428, 213940, 250535, 501070, 952033, 1002140, 1904066, 3808132, 4760165, 9520330, 19040660]

約数ペア:

[(1, 19040660), (2, 9520330), (4, 4760165), (5, 3808132), (10, 1904066), (19, 1002140), (20, 952033), (38, 501070), (76, 250535), (89, 213940), (95, 200428), (178, 106970), (190, 100214), (356, 53485), (380, 50107), (445, 42788), (563, 33820), (890, 21394), (1126, 16910), (1691, 11260), (1780, 10697), (2252, 8455), (2815, 6764), (3382, 5630)]