81867105

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10639}}^1$

素因数の和:10675

約数の個数: 40

約数和(自身を含む): 154492800

約数和(自身を除く): 72625695

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 7695, 10639, 31917, 53195, 95751, 159585, 202141, 287253, 478755, 606423, 861759, 1010705, 1436265, 1819269, 3032115, 4308795, 5457807, 9096345, 16373421, 27289035, 81867105]

約数ペア:

[(1, 81867105), (3, 27289035), (5, 16373421), (9, 9096345), (15, 5457807), (19, 4308795), (27, 3032115), (45, 1819269), (57, 1436265), (81, 1010705), (95, 861759), (135, 606423), (171, 478755), (285, 287253), (405, 202141), (513, 159585), (855, 95751), (1539, 53195), (2565, 31917), (7695, 10639)]