2080720390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1871}}^1\times {\mathrm{15887}}^1$

素因数の和:17772

約数の個数: 32

約数和(自身を含む): 4282896384

約数和(自身を除く): 2202175994

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1871, 3742, 9355, 13097, 15887, 18710, 26194, 31774, 65485, 79435, 111209, 130970, 158870, 222418, 556045, 1112090, 29724577, 59449154, 148622885, 208072039, 297245770, 416144078, 1040360195, 2080720390]

約数ペア:

[(1, 2080720390), (2, 1040360195), (5, 416144078), (7, 297245770), (10, 208072039), (14, 148622885), (35, 59449154), (70, 29724577), (1871, 1112090), (3742, 556045), (9355, 222418), (13097, 158870), (15887, 130970), (18710, 111209), (26194, 79435), (31774, 65485)]