1278889456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{6148507}}^1$

素因数の和:6148528

約数の個数: 20

約数和(自身を含む): 2668452472

約数和(自身を除く): 1389563016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 6148507, 12297014, 24594028, 49188056, 79930591, 98376112, 159861182, 319722364, 639444728, 1278889456]

約数ペア:

[(1, 1278889456), (2, 639444728), (4, 319722364), (8, 159861182), (13, 98376112), (16, 79930591), (26, 49188056), (52, 24594028), (104, 12297014), (208, 6148507)]