19718734540

素因数分解:

$2^2\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{877949}}^1$

素因数の和:879081

約数の個数: 24

約数和(自身を含む): 41446263600

約数和(自身を除く): 21727529060

約数列:

[1, 2, 4, 5, 10, 20, 1123, 2246, 4492, 5615, 11230, 22460, 877949, 1755898, 3511796, 4389745, 8779490, 17558980, 985936727, 1971873454, 3943746908, 4929683635, 9859367270, 19718734540]

約数ペア:

[(1, 19718734540), (2, 9859367270), (4, 4929683635), (5, 3943746908), (10, 1971873454), (20, 985936727), (1123, 17558980), (2246, 8779490), (4492, 4389745), (5615, 3511796), (11230, 1755898), (22460, 877949)]