127697980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{409}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 274004640

約数和(自身を除く): 146306660

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 233, 268, 335, 409, 466, 670, 818, 932, 1165, 1340, 1636, 2045, 2330, 4090, 4660, 8180, 15611, 27403, 31222, 54806, 62444, 78055, 95297, 109612, 137015, 156110, 190594, 274030, 312220, 381188, 476485, 548060, 952970, 1905940, 6384899, 12769798, 25539596, 31924495, 63848990, 127697980]

約数ペア:

[(1, 127697980), (2, 63848990), (4, 31924495), (5, 25539596), (10, 12769798), (20, 6384899), (67, 1905940), (134, 952970), (233, 548060), (268, 476485), (335, 381188), (409, 312220), (466, 274030), (670, 190594), (818, 156110), (932, 137015), (1165, 109612), (1340, 95297), (1636, 78055), (2045, 62444), (2330, 54806), (4090, 31222), (4660, 27403), (8180, 15611)]