12768340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49109}}^1$

素因数の和:49131

約数の個数: 24

約数和(自身を含む): 28876680

約数和(自身を除く): 16108340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49109, 98218, 196436, 245545, 491090, 638417, 982180, 1276834, 2553668, 3192085, 6384170, 12768340]

約数ペア:

[(1, 12768340), (2, 6384170), (4, 3192085), (5, 2553668), (10, 1276834), (13, 982180), (20, 638417), (26, 491090), (52, 245545), (65, 196436), (130, 98218), (260, 49109)]