28720072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{211177}}^1$

素因数の和:211200

約数の個数: 16

約数和(自身を含む): 57018060

約数和(自身を除く): 28297988

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 211177, 422354, 844708, 1689416, 3590009, 7180018, 14360036, 28720072]

約数ペア:

[(1, 28720072), (2, 14360036), (4, 7180018), (8, 3590009), (17, 1689416), (34, 844708), (68, 422354), (136, 211177)]