2019440560

素因数分解:

$2^4\times 5^1\times {\mathrm{25243007}}^1$

素因数の和:25243020

約数の個数: 20

約数和(自身を含む): 4695199488

約数和(自身を除く): 2675758928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25243007, 50486014, 100972028, 126215035, 201944056, 252430070, 403888112, 504860140, 1009720280, 2019440560]

約数ペア:

[(1, 2019440560), (2, 1009720280), (4, 504860140), (5, 403888112), (8, 252430070), (10, 201944056), (16, 126215035), (20, 100972028), (40, 50486014), (80, 25243007)]