820988

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 1663200

約数和(自身を除く): 842212

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 269, 436, 538, 763, 1076, 1526, 1883, 3052, 3766, 7532, 29321, 58642, 117284, 205247, 410494, 820988]

約数ペア:

[(1, 820988), (2, 410494), (4, 205247), (7, 117284), (14, 58642), (28, 29321), (109, 7532), (218, 3766), (269, 3052), (436, 1883), (538, 1526), (763, 1076)]