198312880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{130469}}^1$

素因数の和:130501

約数の個数: 40

約数和(自身を含む): 485348400

約数和(自身を除く): 287035520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 130469, 260938, 521876, 652345, 1043752, 1304690, 2087504, 2478911, 2609380, 4957822, 5218760, 9915644, 10437520, 12394555, 19831288, 24789110, 39662576, 49578220, 99156440, 198312880]

約数ペア:

[(1, 198312880), (2, 99156440), (4, 49578220), (5, 39662576), (8, 24789110), (10, 19831288), (16, 12394555), (19, 10437520), (20, 9915644), (38, 5218760), (40, 4957822), (76, 2609380), (80, 2478911), (95, 2087504), (152, 1304690), (190, 1043752), (304, 652345), (380, 521876), (760, 260938), (1520, 130469)]