72111920

素因数分解:

$2^4\times 5^1\times {\mathrm{901399}}^1$

素因数の和:901412

約数の個数: 20

約数和(自身を含む): 167660400

約数和(自身を除く): 95548480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 901399, 1802798, 3605596, 4506995, 7211192, 9013990, 14422384, 18027980, 36055960, 72111920]

約数ペア:

[(1, 72111920), (2, 36055960), (4, 18027980), (5, 14422384), (8, 9013990), (10, 7211192), (16, 4506995), (20, 3605596), (40, 1802798), (80, 901399)]