81040860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{450227}}^1$

素因数の和:450242

約数の個数: 36

約数和(自身を含む): 245824488

約数和(自身を除く): 164783628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 450227, 900454, 1350681, 1800908, 2251135, 2701362, 4052043, 4502270, 5402724, 6753405, 8104086, 9004540, 13506810, 16208172, 20260215, 27013620, 40520430, 81040860]

約数ペア:

[(1, 81040860), (2, 40520430), (3, 27013620), (4, 20260215), (5, 16208172), (6, 13506810), (9, 9004540), (10, 8104086), (12, 6753405), (15, 5402724), (18, 4502270), (20, 4052043), (30, 2701362), (36, 2251135), (45, 1800908), (60, 1350681), (90, 900454), (180, 450227)]