19207400

素因数分解:

$2^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{701}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 45047340

約数和(自身を除く): 25839940

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 137, 200, 274, 548, 685, 701, 1096, 1370, 1402, 2740, 2804, 3425, 3505, 5480, 5608, 6850, 7010, 13700, 14020, 17525, 27400, 28040, 35050, 70100, 96037, 140200, 192074, 384148, 480185, 768296, 960370, 1920740, 2400925, 3841480, 4801850, 9603700, 19207400]

約数ペア:

[(1, 19207400), (2, 9603700), (4, 4801850), (5, 3841480), (8, 2400925), (10, 1920740), (20, 960370), (25, 768296), (40, 480185), (50, 384148), (100, 192074), (137, 140200), (200, 96037), (274, 70100), (548, 35050), (685, 28040), (701, 27400), (1096, 17525), (1370, 14020), (1402, 13700), (2740, 7010), (2804, 6850), (3425, 5608), (3505, 5480)]