280742980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{19469}}^1$

素因数の和:19588

約数の個数: 48

約数和(自身を含む): 680359680

約数和(自身を除く): 399616700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 7210, 14420, 19469, 38938, 77876, 97345, 136283, 194690, 272566, 389380, 545132, 681415, 1362830, 2005307, 2725660, 4010614, 8021228, 10026535, 14037149, 20053070, 28074298, 40106140, 56148596, 70185745, 140371490, 280742980]

約数ペア:

[(1, 280742980), (2, 140371490), (4, 70185745), (5, 56148596), (7, 40106140), (10, 28074298), (14, 20053070), (20, 14037149), (28, 10026535), (35, 8021228), (70, 4010614), (103, 2725660), (140, 2005307), (206, 1362830), (412, 681415), (515, 545132), (721, 389380), (1030, 272566), (1442, 194690), (2060, 136283), (2884, 97345), (3605, 77876), (7210, 38938), (14420, 19469)]