1678768

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1153}}^1$

素因数の和:1181

約数の個数: 40

約数和(自身を含む): 4006688

約数和(自身を除く): 2327920

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1153, 1456, 2306, 4612, 8071, 9224, 14989, 16142, 18448, 29978, 32284, 59956, 64568, 104923, 119912, 129136, 209846, 239824, 419692, 839384, 1678768]

約数ペア:

[(1, 1678768), (2, 839384), (4, 419692), (7, 239824), (8, 209846), (13, 129136), (14, 119912), (16, 104923), (26, 64568), (28, 59956), (52, 32284), (56, 29978), (91, 18448), (104, 16142), (112, 14989), (182, 9224), (208, 8071), (364, 4612), (728, 2306), (1153, 1456)]