205428140

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{53777}}^1$

素因数の和:53977

約数の個数: 24

約数和(自身を含む): 433665792

約数和(自身を除く): 228237652

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 53777, 107554, 215108, 268885, 537770, 1075540, 10271407, 20542814, 41085628, 51357035, 102714070, 205428140]

約数ペア:

[(1, 205428140), (2, 102714070), (4, 51357035), (5, 41085628), (10, 20542814), (20, 10271407), (191, 1075540), (382, 537770), (764, 268885), (955, 215108), (1910, 107554), (3820, 53777)]