311380016

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{140009}}^1$

素因数の和:140156

約数の個数: 20

約数和(自身を含む): 607643400

約数和(自身を除く): 296263384

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 140009, 280018, 560036, 1120072, 2240144, 19461251, 38922502, 77845004, 155690008, 311380016]

約数ペア:

[(1, 311380016), (2, 155690008), (4, 77845004), (8, 38922502), (16, 19461251), (139, 2240144), (278, 1120072), (556, 560036), (1112, 280018), (2224, 140009)]