81570892

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{1801}}^1$

素因数の和:1898

約数の個数: 36

約数和(自身を含む): 156968616

約数和(自身を除く): 75397724

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 169, 268, 338, 676, 871, 1742, 1801, 3484, 3602, 7204, 11323, 22646, 23413, 45292, 46826, 93652, 120667, 241334, 304369, 482668, 608738, 1217476, 1568671, 3137342, 6274684, 20392723, 40785446, 81570892]

約数ペア:

[(1, 81570892), (2, 40785446), (4, 20392723), (13, 6274684), (26, 3137342), (52, 1568671), (67, 1217476), (134, 608738), (169, 482668), (268, 304369), (338, 241334), (676, 120667), (871, 93652), (1742, 46826), (1801, 45292), (3484, 23413), (3602, 22646), (7204, 11323)]