25579520

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1249}}^1$

素因数の和:1278

約数の個数: 52

約数和(自身を含む): 61432500

約数和(自身を除く): 35852980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1249, 1280, 2048, 2498, 2560, 4096, 4996, 5120, 6245, 9992, 10240, 12490, 19984, 20480, 24980, 39968, 49960, 79936, 99920, 159872, 199840, 319744, 399680, 639488, 799360, 1278976, 1598720, 2557952, 3197440, 5115904, 6394880, 12789760, 25579520]

約数ペア:

[(1, 25579520), (2, 12789760), (4, 6394880), (5, 5115904), (8, 3197440), (10, 2557952), (16, 1598720), (20, 1278976), (32, 799360), (40, 639488), (64, 399680), (80, 319744), (128, 199840), (160, 159872), (256, 99920), (320, 79936), (512, 49960), (640, 39968), (1024, 24980), (1249, 20480), (1280, 19984), (2048, 12490), (2498, 10240), (2560, 9992), (4096, 6245), (4996, 5120)]