28780506

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{11503}}^1$

素因数の和:11650

約数の個数: 24

約数和(自身を含む): 62811840

約数和(自身を除く): 34031334

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 11503, 23006, 34509, 69018, 103527, 207054, 1598917, 3197834, 4796751, 9593502, 14390253, 28780506]

約数ペア:

[(1, 28780506), (2, 14390253), (3, 9593502), (6, 4796751), (9, 3197834), (18, 1598917), (139, 207054), (278, 103527), (417, 69018), (834, 34509), (1251, 23006), (2502, 11503)]