81550736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{587}}^1$

素因数の和:1071

約数の個数: 40

約数和(自身を含む): 166968480

約数和(自身を除く): 85417744

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 457, 587, 914, 1174, 1828, 2348, 3656, 4696, 7312, 8683, 9392, 11153, 17366, 22306, 34732, 44612, 69464, 89224, 138928, 178448, 268259, 536518, 1073036, 2146072, 4292144, 5096921, 10193842, 20387684, 40775368, 81550736]

約数ペア:

[(1, 81550736), (2, 40775368), (4, 20387684), (8, 10193842), (16, 5096921), (19, 4292144), (38, 2146072), (76, 1073036), (152, 536518), (304, 268259), (457, 178448), (587, 138928), (914, 89224), (1174, 69464), (1828, 44612), (2348, 34732), (3656, 22306), (4696, 17366), (7312, 11153), (8683, 9392)]