20564810

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41969}}^1$

素因数の和:41990

約数の個数: 24

約数和(自身を含む): 43061220

約数和(自身を除く): 22496410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41969, 83938, 209845, 293783, 419690, 587566, 1468915, 2056481, 2937830, 4112962, 10282405, 20564810]

約数ペア:

[(1, 20564810), (2, 10282405), (5, 4112962), (7, 2937830), (10, 2056481), (14, 1468915), (35, 587566), (49, 419690), (70, 293783), (98, 209845), (245, 83938), (490, 41969)]