1278889766

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{136139}}^1$

素因数の和:136220

約数の個数: 32

約数和(自身を含む): 2430915840

約数和(自身を除く): 1152026074

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 122, 154, 427, 671, 854, 1342, 4697, 9394, 136139, 272278, 952973, 1497529, 1905946, 2995058, 8304479, 10482703, 16608958, 20965406, 58131353, 91349269, 116262706, 182698538, 639444883, 1278889766]

約数ペア:

[(1, 1278889766), (2, 639444883), (7, 182698538), (11, 116262706), (14, 91349269), (22, 58131353), (61, 20965406), (77, 16608958), (122, 10482703), (154, 8304479), (427, 2995058), (671, 1905946), (854, 1497529), (1342, 952973), (4697, 272278), (9394, 136139)]