28980216

素因数分解:

$2^3\times 3^2\times {\mathrm{402503}}^1$

素因数の和:402515

約数の個数: 24

約数和(自身を含む): 78488280

約数和(自身を除く): 49508064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 402503, 805006, 1207509, 1610012, 2415018, 3220024, 3622527, 4830036, 7245054, 9660072, 14490108, 28980216]

約数ペア:

[(1, 28980216), (2, 14490108), (3, 9660072), (4, 7245054), (6, 4830036), (8, 3622527), (9, 3220024), (12, 2415018), (18, 1610012), (24, 1207509), (36, 805006), (72, 402503)]