1520118719

素因数分解:

$7^4\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:293

約数の個数: 40

約数和(自身を含む): 1838038608

約数和(自身を除く): 317919889

約数列:

[1, 7, 49, 61, 97, 107, 343, 427, 679, 749, 2401, 2989, 4753, 5243, 5917, 6527, 10379, 20923, 33271, 36701, 41419, 45689, 72653, 146461, 232897, 256907, 289933, 319823, 508571, 633119, 2029531, 2238761, 3559997, 4431833, 14206717, 15671327, 24919979, 31022831, 217159817, 1520118719]

約数ペア:

[(1, 1520118719), (7, 217159817), (49, 31022831), (61, 24919979), (97, 15671327), (107, 14206717), (343, 4431833), (427, 3559997), (679, 2238761), (749, 2029531), (2401, 633119), (2989, 508571), (4753, 319823), (5243, 289933), (5917, 256907), (6527, 232897), (10379, 146461), (20923, 72653), (33271, 45689), (36701, 41419)]