81595540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313829}}^1$

素因数の和:313851

約数の個数: 24

約数和(自身を含む): 184532040

約数和(自身を除く): 102936500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313829, 627658, 1255316, 1569145, 3138290, 4079777, 6276580, 8159554, 16319108, 20398885, 40797770, 81595540]

約数ペア:

[(1, 81595540), (2, 40797770), (4, 20398885), (5, 16319108), (10, 8159554), (13, 6276580), (20, 4079777), (26, 3138290), (52, 1569145), (65, 1255316), (130, 627658), (260, 313829)]