28078695

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^2\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 49762440

約数和(自身を除く): 21683745

約数列:

[1, 3, 5, 9, 15, 45, 67, 139, 201, 335, 417, 603, 695, 1005, 1251, 2085, 3015, 4489, 6255, 9313, 13467, 22445, 27939, 40401, 46565, 67335, 83817, 139695, 202005, 419085, 623971, 1871913, 3119855, 5615739, 9359565, 28078695]

約数ペア:

[(1, 28078695), (3, 9359565), (5, 5615739), (9, 3119855), (15, 1871913), (45, 623971), (67, 419085), (139, 202005), (201, 139695), (335, 83817), (417, 67335), (603, 46565), (695, 40401), (1005, 27939), (1251, 22445), (2085, 13467), (3015, 9313), (4489, 6255)]