51587600

素因数分解:

$2^4\times 5^2\times {\mathrm{128969}}^1$

素因数の和:128987

約数の個数: 30

約数和(自身を含む): 123940170

約数和(自身を除く): 72352570

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128969, 257938, 515876, 644845, 1031752, 1289690, 2063504, 2579380, 3224225, 5158760, 6448450, 10317520, 12896900, 25793800, 51587600]

約数ペア:

[(1, 51587600), (2, 25793800), (4, 12896900), (5, 10317520), (8, 6448450), (10, 5158760), (16, 3224225), (20, 2579380), (25, 2063504), (40, 1289690), (50, 1031752), (80, 644845), (100, 515876), (200, 257938), (400, 128969)]