28293755

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 41256960

約数和(自身を除く): 12963205

約数列:

[1, 5, 7, 19, 35, 95, 133, 157, 271, 665, 785, 1099, 1355, 1897, 2983, 5149, 5495, 9485, 14915, 20881, 25745, 36043, 42547, 104405, 180215, 212735, 297829, 808393, 1489145, 4041965, 5658751, 28293755]

約数ペア:

[(1, 28293755), (5, 5658751), (7, 4041965), (19, 1489145), (35, 808393), (95, 297829), (133, 212735), (157, 180215), (271, 104405), (665, 42547), (785, 36043), (1099, 25745), (1355, 20881), (1897, 14915), (2983, 9485), (5149, 5495)]