72791920

素因数分解:

$2^4\times 5^1\times {\mathrm{909899}}^1$

素因数の和:909912

約数の個数: 20

約数和(自身を含む): 169241400

約数和(自身を除く): 96449480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 909899, 1819798, 3639596, 4549495, 7279192, 9098990, 14558384, 18197980, 36395960, 72791920]

約数ペア:

[(1, 72791920), (2, 36395960), (4, 18197980), (5, 14558384), (8, 9098990), (10, 7279192), (16, 4549495), (20, 3639596), (40, 1819798), (80, 909899)]