52780390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31231}}^1$

素因数の和:31264

約数の個数: 24

約数和(自身を含む): 102878208

約数和(自身を除く): 50097818

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 31231, 62462, 156155, 312310, 406003, 812006, 2030015, 4060030, 5278039, 10556078, 26390195, 52780390]

約数ペア:

[(1, 52780390), (2, 26390195), (5, 10556078), (10, 5278039), (13, 4060030), (26, 2030015), (65, 812006), (130, 406003), (169, 312310), (338, 156155), (845, 62462), (1690, 31231)]