30720640

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2129

約数の個数: 64

約数和(自身を含む): 76671360

約数和(自身を除く): 45950720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2087, 2944, 3680, 4174, 7360, 8348, 10435, 14720, 16696, 20870, 33392, 41740, 48001, 66784, 83480, 96002, 133568, 166960, 192004, 240005, 267136, 333920, 384008, 480010, 667840, 768016, 960020, 1335680, 1536032, 1920040, 3072064, 3840080, 6144128, 7680160, 15360320, 30720640]

約数ペア:

[(1, 30720640), (2, 15360320), (4, 7680160), (5, 6144128), (8, 3840080), (10, 3072064), (16, 1920040), (20, 1536032), (23, 1335680), (32, 960020), (40, 768016), (46, 667840), (64, 480010), (80, 384008), (92, 333920), (115, 267136), (128, 240005), (160, 192004), (184, 166960), (230, 133568), (320, 96002), (368, 83480), (460, 66784), (640, 48001), (736, 41740), (920, 33392), (1472, 20870), (1840, 16696), (2087, 14720), (2944, 10435), (3680, 8348), (4174, 7360)]