28529750

素因数分解:

$2^1\times 5^3\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 53857440

約数和(自身を除く): 25327690

約数列:

[1, 2, 5, 10, 25, 50, 125, 139, 250, 278, 695, 821, 1390, 1642, 3475, 4105, 6950, 8210, 17375, 20525, 34750, 41050, 102625, 114119, 205250, 228238, 570595, 1141190, 2852975, 5705950, 14264875, 28529750]

約数ペア:

[(1, 28529750), (2, 14264875), (5, 5705950), (10, 2852975), (25, 1141190), (50, 570595), (125, 228238), (139, 205250), (250, 114119), (278, 102625), (695, 41050), (821, 34750), (1390, 20525), (1642, 17375), (3475, 8210), (4105, 6950)]