258918140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{76603}}^1$

素因数の和:76638

約数の個数: 36

約数和(自身を含む): 588778344

約数和(自身を除く): 329860204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 76603, 153206, 306412, 383015, 766030, 995839, 1532060, 1991678, 3983356, 4979195, 9958390, 12945907, 19916780, 25891814, 51783628, 64729535, 129459070, 258918140]

約数ペア:

[(1, 258918140), (2, 129459070), (4, 64729535), (5, 51783628), (10, 25891814), (13, 19916780), (20, 12945907), (26, 9958390), (52, 4979195), (65, 3983356), (130, 1991678), (169, 1532060), (260, 995839), (338, 766030), (676, 383015), (845, 306412), (1690, 153206), (3380, 76603)]