20460790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1223}}^1$

素因数の和:1476

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 21840650

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 239, 478, 1195, 1223, 1673, 2390, 2446, 3346, 6115, 8365, 8561, 12230, 16730, 17122, 42805, 85610, 292297, 584594, 1461485, 2046079, 2922970, 4092158, 10230395, 20460790]

約数ペア:

[(1, 20460790), (2, 10230395), (5, 4092158), (7, 2922970), (10, 2046079), (14, 1461485), (35, 584594), (70, 292297), (239, 85610), (478, 42805), (1195, 17122), (1223, 16730), (1673, 12230), (2390, 8561), (2446, 8365), (3346, 6115)]