81529955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:375

約数の個数: 32

約数和(自身を含む): 108596544

約数和(自身を除く): 27066589

約数列:

[1, 5, 13, 65, 67, 97, 193, 335, 485, 871, 965, 1261, 2509, 4355, 6305, 6499, 12545, 12931, 18721, 32495, 64655, 84487, 93605, 168103, 243373, 422435, 840515, 1216865, 1254307, 6271535, 16305991, 81529955]

約数ペア:

[(1, 81529955), (5, 16305991), (13, 6271535), (65, 1254307), (67, 1216865), (97, 840515), (193, 422435), (335, 243373), (485, 168103), (871, 93605), (965, 84487), (1261, 64655), (2509, 32495), (4355, 18721), (6305, 12931), (6499, 12545)]