2554880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{499}}^1$

素因数の和:524

約数の個数: 44

約数和(自身を含む): 6141000

約数和(自身を除く): 3586120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 499, 512, 640, 998, 1024, 1280, 1996, 2495, 2560, 3992, 4990, 5120, 7984, 9980, 15968, 19960, 31936, 39920, 63872, 79840, 127744, 159680, 255488, 319360, 510976, 638720, 1277440, 2554880]

約数ペア:

[(1, 2554880), (2, 1277440), (4, 638720), (5, 510976), (8, 319360), (10, 255488), (16, 159680), (20, 127744), (32, 79840), (40, 63872), (64, 39920), (80, 31936), (128, 19960), (160, 15968), (256, 9980), (320, 7984), (499, 5120), (512, 4990), (640, 3992), (998, 2560), (1024, 2495), (1280, 1996)]