209075140

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{6271}}^1$

素因数の和:7947

約数の個数: 24

約数和(自身を含む): 439391232

約数和(自身を除く): 230316092

約数列:

[1, 2, 4, 5, 10, 20, 1667, 3334, 6271, 6668, 8335, 12542, 16670, 25084, 31355, 33340, 62710, 125420, 10453757, 20907514, 41815028, 52268785, 104537570, 209075140]

約数ペア:

[(1, 209075140), (2, 104537570), (4, 52268785), (5, 41815028), (10, 20907514), (20, 10453757), (1667, 125420), (3334, 62710), (6271, 33340), (6668, 31355), (8335, 25084), (12542, 16670)]