81216356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53857}}^1$

素因数の和:53903

約数の個数: 24

約数和(自身を含む): 158342520

約数和(自身を除く): 77126164

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 53857, 107714, 215428, 700141, 1400282, 1561853, 2800564, 3123706, 6247412, 20304089, 40608178, 81216356]

約数ペア:

[(1, 81216356), (2, 40608178), (4, 20304089), (13, 6247412), (26, 3123706), (29, 2800564), (52, 1561853), (58, 1400282), (116, 700141), (377, 215428), (754, 107714), (1508, 53857)]