128969000

素因数分解:

$2^3\times 5^3\times {\mathrm{128969}}^1$

素因数の和:128990

約数の個数: 32

約数和(自身を含む): 301789800

約数和(自身を除く): 172820800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 128969, 257938, 515876, 644845, 1031752, 1289690, 2579380, 3224225, 5158760, 6448450, 12896900, 16121125, 25793800, 32242250, 64484500, 128969000]

約数ペア:

[(1, 128969000), (2, 64484500), (4, 32242250), (5, 25793800), (8, 16121125), (10, 12896900), (20, 6448450), (25, 5158760), (40, 3224225), (50, 2579380), (100, 1289690), (125, 1031752), (200, 644845), (250, 515876), (500, 257938), (1000, 128969)]