20045745

素因数分解:

$3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1789}}^1$

素因数の和:1886

約数の個数: 32

約数和(自身を含む): 36086400

約数和(自身を除く): 16040655

約数列:

[1, 3, 5, 9, 15, 27, 45, 83, 135, 249, 415, 747, 1245, 1789, 2241, 3735, 5367, 8945, 11205, 16101, 26835, 48303, 80505, 148487, 241515, 445461, 742435, 1336383, 2227305, 4009149, 6681915, 20045745]

約数ペア:

[(1, 20045745), (3, 6681915), (5, 4009149), (9, 2227305), (15, 1336383), (27, 742435), (45, 445461), (83, 241515), (135, 148487), (249, 80505), (415, 48303), (747, 26835), (1245, 16101), (1789, 11205), (2241, 8945), (3735, 5367)]