19005640180

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2116441}}^1$

素因数の和:2116899

約数の個数: 24

約数和(自身を含む): 40000753800

約数和(自身を除く): 20995113620

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8980, 2116441, 4232882, 8465764, 10582205, 21164410, 42328820, 950282009, 1900564018, 3801128036, 4751410045, 9502820090, 19005640180]

約数ペア:

[(1, 19005640180), (2, 9502820090), (4, 4751410045), (5, 3801128036), (10, 1900564018), (20, 950282009), (449, 42328820), (898, 21164410), (1796, 10582205), (2245, 8465764), (4490, 4232882), (8980, 2116441)]