689863070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{408203}}^1$

素因数の和:408236

約数の個数: 24

約数和(自身を含む): 1344623976

約数和(自身を除く): 654760906

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 408203, 816406, 2041015, 4082030, 5306639, 10613278, 26533195, 53066390, 68986307, 137972614, 344931535, 689863070]

約数ペア:

[(1, 689863070), (2, 344931535), (5, 137972614), (10, 68986307), (13, 53066390), (26, 26533195), (65, 10613278), (130, 5306639), (169, 4082030), (338, 2041015), (845, 816406), (1690, 408203)]