28579252

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:728

約数の個数: 36

約数和(自身を含む): 55052256

約数和(自身を除く): 26473004

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 169, 268, 338, 631, 676, 871, 1262, 1742, 2524, 3484, 8203, 11323, 16406, 22646, 32812, 42277, 45292, 84554, 106639, 169108, 213278, 426556, 549601, 1099202, 2198404, 7144813, 14289626, 28579252]

約数ペア:

[(1, 28579252), (2, 14289626), (4, 7144813), (13, 2198404), (26, 1099202), (52, 549601), (67, 426556), (134, 213278), (169, 169108), (268, 106639), (338, 84554), (631, 45292), (676, 42277), (871, 32812), (1262, 22646), (1742, 16406), (2524, 11323), (3484, 8203)]