638912

素因数分解:

$2^6\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 28

約数和(自身を含む): 1295400

約数和(自身を除く): 656488

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 134, 149, 268, 298, 536, 596, 1072, 1192, 2144, 2384, 4288, 4768, 9536, 9983, 19966, 39932, 79864, 159728, 319456, 638912]

約数ペア:

[(1, 638912), (2, 319456), (4, 159728), (8, 79864), (16, 39932), (32, 19966), (64, 9983), (67, 9536), (134, 4768), (149, 4288), (268, 2384), (298, 2144), (536, 1192), (596, 1072)]