19205480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{607}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 49904640

約数和(自身を除く): 30699160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 607, 791, 904, 1130, 1214, 1582, 2260, 2428, 3035, 3164, 3955, 4249, 4520, 4856, 6070, 6328, 7910, 8498, 12140, 15820, 16996, 21245, 24280, 31640, 33992, 42490, 68591, 84980, 137182, 169960, 274364, 342955, 480137, 548728, 685910, 960274, 1371820, 1920548, 2400685, 2743640, 3841096, 4801370, 9602740, 19205480]

約数ペア:

[(1, 19205480), (2, 9602740), (4, 4801370), (5, 3841096), (7, 2743640), (8, 2400685), (10, 1920548), (14, 1371820), (20, 960274), (28, 685910), (35, 548728), (40, 480137), (56, 342955), (70, 274364), (113, 169960), (140, 137182), (226, 84980), (280, 68591), (452, 42490), (565, 33992), (607, 31640), (791, 24280), (904, 21245), (1130, 16996), (1214, 15820), (1582, 12140), (2260, 8498), (2428, 7910), (3035, 6328), (3164, 6070), (3955, 4856), (4249, 4520)]