80821160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288647}}^1$

素因数の和:288665

約数の個数: 32

約数和(自身を含む): 207826560

約数和(自身を除く): 127005400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288647, 577294, 1154588, 1443235, 2020529, 2309176, 2886470, 4041058, 5772940, 8082116, 10102645, 11545880, 16164232, 20205290, 40410580, 80821160]

約数ペア:

[(1, 80821160), (2, 40410580), (4, 20205290), (5, 16164232), (7, 11545880), (8, 10102645), (10, 8082116), (14, 5772940), (20, 4041058), (28, 2886470), (35, 2309176), (40, 2020529), (56, 1443235), (70, 1154588), (140, 577294), (280, 288647)]