1728013820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6646207}}^1$

素因数の和:6646229

約数の個数: 24

約数和(自身を含む): 3907970304

約数和(自身を除く): 2179956484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6646207, 13292414, 26584828, 33231035, 66462070, 86400691, 132924140, 172801382, 345602764, 432003455, 864006910, 1728013820]

約数ペア:

[(1, 1728013820), (2, 864006910), (4, 432003455), (5, 345602764), (10, 172801382), (13, 132924140), (20, 86400691), (26, 66462070), (52, 33231035), (65, 26584828), (130, 13292414), (260, 6646207)]