128205904

素因数分解:

$2^4\times {\mathrm{1669}}^1\times {\mathrm{4801}}^1$

素因数の和:6478

約数の個数: 20

約数和(自身を含む): 248599540

約数和(自身を除く): 120393636

約数列:

[1, 2, 4, 8, 16, 1669, 3338, 4801, 6676, 9602, 13352, 19204, 26704, 38408, 76816, 8012869, 16025738, 32051476, 64102952, 128205904]

約数ペア:

[(1, 128205904), (2, 64102952), (4, 32051476), (8, 16025738), (16, 8012869), (1669, 76816), (3338, 38408), (4801, 26704), (6676, 19204), (9602, 13352)]