131460940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{505619}}^1$

素因数の和:505641

約数の個数: 24

約数和(自身を含む): 297304560

約数和(自身を除く): 165843620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 505619, 1011238, 2022476, 2528095, 5056190, 6573047, 10112380, 13146094, 26292188, 32865235, 65730470, 131460940]

約数ペア:

[(1, 131460940), (2, 65730470), (4, 32865235), (5, 26292188), (10, 13146094), (13, 10112380), (20, 6573047), (26, 5056190), (52, 2528095), (65, 2022476), (130, 1011238), (260, 505619)]