81900216

素因数分解:

$2^3\times 3^2\times {\mathrm{1137503}}^1$

素因数の和:1137515

約数の個数: 24

約数和(自身を含む): 221813280

約数和(自身を除く): 139913064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1137503, 2275006, 3412509, 4550012, 6825018, 9100024, 10237527, 13650036, 20475054, 27300072, 40950108, 81900216]

約数ペア:

[(1, 81900216), (2, 40950108), (3, 27300072), (4, 20475054), (6, 13650036), (8, 10237527), (9, 9100024), (12, 6825018), (18, 4550012), (24, 3412509), (36, 2275006), (72, 1137503)]