20486470

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1723}}^1$

素因数の和:1800

約数の個数: 32

約数和(自身を含む): 39100320

約数和(自身を除く): 18613850

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 1189, 1723, 2378, 3446, 5945, 8615, 11890, 17230, 49967, 70643, 99934, 141286, 249835, 353215, 499670, 706430, 2048647, 4097294, 10243235, 20486470]

約数ペア:

[(1, 20486470), (2, 10243235), (5, 4097294), (10, 2048647), (29, 706430), (41, 499670), (58, 353215), (82, 249835), (145, 141286), (205, 99934), (290, 70643), (410, 49967), (1189, 17230), (1723, 11890), (2378, 8615), (3446, 5945)]