27987895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 38328192

約数和(自身を除く): 10340297

約数列:

[1, 5, 13, 23, 65, 97, 115, 193, 299, 485, 965, 1261, 1495, 2231, 2509, 4439, 6305, 11155, 12545, 18721, 22195, 29003, 57707, 93605, 145015, 243373, 288535, 430583, 1216865, 2152915, 5597579, 27987895]

約数ペア:

[(1, 27987895), (5, 5597579), (13, 2152915), (23, 1216865), (65, 430583), (97, 288535), (115, 243373), (193, 145015), (299, 93605), (485, 57707), (965, 29003), (1261, 22195), (1495, 18721), (2231, 12545), (2509, 11155), (4439, 6305)]