387996885

素因数分解:

$3^5\times 5^1\times {\mathrm{319339}}^1$

素因数の和:319359

約数の個数: 24

約数和(自身を含む): 697438560

約数和(自身を除く): 309441675

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 319339, 958017, 1596695, 2874051, 4790085, 8622153, 14370255, 25866459, 43110765, 77599377, 129332295, 387996885]

約数ペア:

[(1, 387996885), (3, 129332295), (5, 77599377), (9, 43110765), (15, 25866459), (27, 14370255), (45, 8622153), (81, 4790085), (135, 2874051), (243, 1596695), (405, 958017), (1215, 319339)]