81502565

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{2753}}^1$

素因数の和:2980

約数の個数: 16

約数和(自身を含む): 101523456

約数和(自身を除く): 20020891

約数列:

[1, 5, 31, 155, 191, 955, 2753, 5921, 13765, 29605, 85343, 426715, 525823, 2629115, 16300513, 81502565]

約数ペア:

[(1, 81502565), (5, 16300513), (31, 2629115), (155, 525823), (191, 426715), (955, 85343), (2753, 29605), (5921, 13765)]