6643390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3931}}^1$

素因数の和:3964

約数の個数: 24

約数和(自身を含む): 12952008

約数和(自身を除く): 6308618

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 3931, 7862, 19655, 39310, 51103, 102206, 255515, 511030, 664339, 1328678, 3321695, 6643390]

約数ペア:

[(1, 6643390), (2, 3321695), (5, 1328678), (10, 664339), (13, 511030), (26, 255515), (65, 102206), (130, 51103), (169, 39310), (338, 19655), (845, 7862), (1690, 3931)]