391736380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{399731}}^1$

素因数の和:399754

約数の個数: 36

約数和(自身を含む): 956958408

約数和(自身を除く): 565222028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 399731, 799462, 1598924, 1998655, 2798117, 3997310, 5596234, 7994620, 11192468, 13990585, 19586819, 27981170, 39173638, 55962340, 78347276, 97934095, 195868190, 391736380]

約数ペア:

[(1, 391736380), (2, 195868190), (4, 97934095), (5, 78347276), (7, 55962340), (10, 39173638), (14, 27981170), (20, 19586819), (28, 13990585), (35, 11192468), (49, 7994620), (70, 5596234), (98, 3997310), (140, 2798117), (196, 1998655), (245, 1598924), (490, 799462), (980, 399731)]