261153145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1721}}^1$

素因数の和:1857

約数の個数: 32

約数和(自身を含む): 357073920

約数和(自身を除く): 95920775

約数列:

[1, 5, 11, 31, 55, 89, 155, 341, 445, 979, 1705, 1721, 2759, 4895, 8605, 13795, 18931, 30349, 53351, 94655, 151745, 153169, 266755, 586861, 765845, 1684859, 2934305, 4748239, 8424295, 23741195, 52230629, 261153145]

約数ペア:

[(1, 261153145), (5, 52230629), (11, 23741195), (31, 8424295), (55, 4748239), (89, 2934305), (155, 1684859), (341, 765845), (445, 586861), (979, 266755), (1705, 153169), (1721, 151745), (2759, 94655), (4895, 53351), (8605, 30349), (13795, 18931)]