40990815

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19381}}^1$

素因数の和:19439

約数の個数: 24

約数和(自身を含む): 72566208

約数和(自身を除く): 31575393

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 19381, 58143, 96905, 174429, 290715, 872145, 910907, 2732721, 4554535, 8198163, 13663605, 40990815]

約数ペア:

[(1, 40990815), (3, 13663605), (5, 8198163), (9, 4554535), (15, 2732721), (45, 910907), (47, 872145), (141, 290715), (235, 174429), (423, 96905), (705, 58143), (2115, 19381)]