128518900

素因数分解:

$2^2\times 5^2\times {\mathrm{379}}^1\times {\mathrm{3391}}^1$

素因数の和:3784

約数の個数: 36

約数和(自身を含む): 279704320

約数和(自身を除く): 151185420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 379, 758, 1516, 1895, 3391, 3790, 6782, 7580, 9475, 13564, 16955, 18950, 33910, 37900, 67820, 84775, 169550, 339100, 1285189, 2570378, 5140756, 6425945, 12851890, 25703780, 32129725, 64259450, 128518900]

約数ペア:

[(1, 128518900), (2, 64259450), (4, 32129725), (5, 25703780), (10, 12851890), (20, 6425945), (25, 5140756), (50, 2570378), (100, 1285189), (379, 339100), (758, 169550), (1516, 84775), (1895, 67820), (3391, 37900), (3790, 33910), (6782, 18950), (7580, 16955), (9475, 13564)]