28180480

素因数分解:

$2^{17}\times 5^1\times {\mathrm{43}}^1$

素因数の和:82

約数の個数: 72

約数和(自身を含む): 69205752

約数和(自身を除く): 41025272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 640, 688, 860, 1024, 1280, 1376, 1720, 2048, 2560, 2752, 3440, 4096, 5120, 5504, 6880, 8192, 10240, 11008, 13760, 16384, 20480, 22016, 27520, 32768, 40960, 44032, 55040, 65536, 81920, 88064, 110080, 131072, 163840, 176128, 220160, 327680, 352256, 440320, 655360, 704512, 880640, 1409024, 1761280, 2818048, 3522560, 5636096, 7045120, 14090240, 28180480]

約数ペア:

[(1, 28180480), (2, 14090240), (4, 7045120), (5, 5636096), (8, 3522560), (10, 2818048), (16, 1761280), (20, 1409024), (32, 880640), (40, 704512), (43, 655360), (64, 440320), (80, 352256), (86, 327680), (128, 220160), (160, 176128), (172, 163840), (215, 131072), (256, 110080), (320, 88064), (344, 81920), (430, 65536), (512, 55040), (640, 44032), (688, 40960), (860, 32768), (1024, 27520), (1280, 22016), (1376, 20480), (1720, 16384), (2048, 13760), (2560, 11008), (2752, 10240), (3440, 8192), (4096, 6880), (5120, 5504)]