440320

素因数分解:

$2^{11}\times 5^1\times {\mathrm{43}}^1$

素因数の和:70

約数の個数: 48

約数和(自身を含む): 1081080

約数和(自身を除く): 640760

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, 5120, 5504, 6880, 10240, 11008, 13760, 22016, 27520, 44032, 55040, 88064, 110080, 220160, 440320]

約数ペア:

[(1, 440320), (2, 220160), (4, 110080), (5, 88064), (8, 55040), (10, 44032), (16, 27520), (20, 22016), (32, 13760), (40, 11008), (43, 10240), (64, 6880), (80, 5504), (86, 5120), (128, 3440), (160, 2752), (172, 2560), (215, 2048), (256, 1720), (320, 1376), (344, 1280), (430, 1024), (512, 860), (640, 688)]