12797980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49223}}^1$

素因数の和:49245

約数の個数: 24

約数和(自身を含む): 28943712

約数和(自身を除く): 16145732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49223, 98446, 196892, 246115, 492230, 639899, 984460, 1279798, 2559596, 3199495, 6398990, 12797980]

約数ペア:

[(1, 12797980), (2, 6398990), (4, 3199495), (5, 2559596), (10, 1279798), (13, 984460), (20, 639899), (26, 492230), (52, 246115), (65, 196892), (130, 98446), (260, 49223)]