1990403745

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1637}}^1\times {\mathrm{7369}}^1$

素因数の和:9025

約数の個数: 32

約数和(自身を含む): 3476753280

約数和(自身を除く): 1486349535

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 1637, 4911, 7369, 8185, 18007, 22107, 24555, 36845, 54021, 81059, 90035, 110535, 243177, 270105, 405295, 1215885, 12063053, 36189159, 60315265, 132693583, 180945795, 398080749, 663467915, 1990403745]

約数ペア:

[(1, 1990403745), (3, 663467915), (5, 398080749), (11, 180945795), (15, 132693583), (33, 60315265), (55, 36189159), (165, 12063053), (1637, 1215885), (4911, 405295), (7369, 270105), (8185, 243177), (18007, 110535), (22107, 90035), (24555, 81059), (36845, 54021)]