20480640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{10667}}^1$

素因数の和:10689

約数の個数: 64

約数和(自身を含む): 65288160

約数和(自身を除く): 44807520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 10667, 21334, 32001, 42668, 53335, 64002, 85336, 106670, 128004, 160005, 170672, 213340, 256008, 320010, 341344, 426680, 512016, 640020, 682688, 853360, 1024032, 1280040, 1365376, 1706720, 2048064, 2560080, 3413440, 4096128, 5120160, 6826880, 10240320, 20480640]

約数ペア:

[(1, 20480640), (2, 10240320), (3, 6826880), (4, 5120160), (5, 4096128), (6, 3413440), (8, 2560080), (10, 2048064), (12, 1706720), (15, 1365376), (16, 1280040), (20, 1024032), (24, 853360), (30, 682688), (32, 640020), (40, 512016), (48, 426680), (60, 341344), (64, 320010), (80, 256008), (96, 213340), (120, 170672), (128, 160005), (160, 128004), (192, 106670), (240, 85336), (320, 64002), (384, 53335), (480, 42668), (640, 32001), (960, 21334), (1920, 10667)]