3947728

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{983}}^1$

素因数の和:1242

約数の個数: 20

約数和(自身を含む): 7687008

約数和(自身を除く): 3739280

約数列:

[1, 2, 4, 8, 16, 251, 502, 983, 1004, 1966, 2008, 3932, 4016, 7864, 15728, 246733, 493466, 986932, 1973864, 3947728]

約数ペア:

[(1, 3947728), (2, 1973864), (4, 986932), (8, 493466), (16, 246733), (251, 15728), (502, 7864), (983, 4016), (1004, 3932), (1966, 2008)]