78947824

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{159169}}^1$

素因数の和:159208

約数の個数: 20

約数和(自身を含む): 157896640

約数和(自身を除く): 78948816

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 159169, 318338, 636676, 1273352, 2546704, 4934239, 9868478, 19736956, 39473912, 78947824]

約数ペア:

[(1, 78947824), (2, 39473912), (4, 19736956), (8, 9868478), (16, 4934239), (31, 2546704), (62, 1273352), (124, 636676), (248, 318338), (496, 159169)]