201591920

素因数分解:

$2^4\times 5^1\times {\mathrm{2519899}}^1$

素因数の和:2519912

約数の個数: 20

約数和(自身を含む): 468701400

約数和(自身を除く): 267109480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2519899, 5039798, 10079596, 12599495, 20159192, 25198990, 40318384, 50397980, 100795960, 201591920]

約数ペア:

[(1, 201591920), (2, 100795960), (4, 50397980), (5, 40318384), (8, 25198990), (10, 20159192), (16, 12599495), (20, 10079596), (40, 5039798), (80, 2519899)]