857145220

素因数分解:

$2^2\times 5^1\times {\mathrm{2713}}^1\times {\mathrm{15797}}^1$

素因数の和:18519

約数の個数: 24

約数和(自身を含む): 1800782424

約数和(自身を除く): 943637204

約数列:

[1, 2, 4, 5, 10, 20, 2713, 5426, 10852, 13565, 15797, 27130, 31594, 54260, 63188, 78985, 157970, 315940, 42857261, 85714522, 171429044, 214286305, 428572610, 857145220]

約数ペア:

[(1, 857145220), (2, 428572610), (4, 214286305), (5, 171429044), (10, 85714522), (20, 42857261), (2713, 315940), (5426, 157970), (10852, 78985), (13565, 63188), (15797, 54260), (27130, 31594)]