1397608208

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{1303739}}^1$

素因数の和:1303814

約数の個数: 20

約数和(自身を含む): 2748283920

約数和(自身を除く): 1350675712

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 1303739, 2607478, 5214956, 10429912, 20859824, 87350513, 174701026, 349402052, 698804104, 1397608208]

約数ペア:

[(1, 1397608208), (2, 698804104), (4, 349402052), (8, 174701026), (16, 87350513), (67, 20859824), (134, 10429912), (268, 5214956), (536, 2607478), (1072, 1303739)]