20341160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72647}}^1$

素因数の和:72665

約数の個数: 32

約数和(自身を含む): 52306560

約数和(自身を除く): 31965400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72647, 145294, 290588, 363235, 508529, 581176, 726470, 1017058, 1452940, 2034116, 2542645, 2905880, 4068232, 5085290, 10170580, 20341160]

約数ペア:

[(1, 20341160), (2, 10170580), (4, 5085290), (5, 4068232), (7, 2905880), (8, 2542645), (10, 2034116), (14, 1452940), (20, 1017058), (28, 726470), (35, 581176), (40, 508529), (56, 363235), (70, 290588), (140, 145294), (280, 72647)]