28303975

素因数分解:

$5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1035

約数の個数: 24

約数和(自身を含む): 40363488

約数和(自身を除く): 12059513

約数列:

[1, 5, 7, 25, 35, 175, 197, 821, 985, 1379, 4105, 4925, 5747, 6895, 20525, 28735, 34475, 143675, 161737, 808685, 1132159, 4043425, 5660795, 28303975]

約数ペア:

[(1, 28303975), (5, 5660795), (7, 4043425), (25, 1132159), (35, 808685), (175, 161737), (197, 143675), (821, 34475), (985, 28735), (1379, 20525), (4105, 6895), (4925, 5747)]