204459520

素因数分解:

$2^9\times 5^1\times {\mathrm{79867}}^1$

素因数の和:79890

約数の個数: 40

約数和(自身を含む): 490229784

約数和(自身を除く): 285770264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 79867, 159734, 319468, 399335, 638936, 798670, 1277872, 1597340, 2555744, 3194680, 5111488, 6389360, 10222976, 12778720, 20445952, 25557440, 40891904, 51114880, 102229760, 204459520]

約数ペア:

[(1, 204459520), (2, 102229760), (4, 51114880), (5, 40891904), (8, 25557440), (10, 20445952), (16, 12778720), (20, 10222976), (32, 6389360), (40, 5111488), (64, 3194680), (80, 2555744), (128, 1597340), (160, 1277872), (256, 798670), (320, 638936), (512, 399335), (640, 319468), (1280, 159734), (2560, 79867)]