18046720

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 45180576

約数和(自身を除く): 27133856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 613, 640, 736, 920, 1226, 1280, 1472, 1840, 2452, 2944, 3065, 3680, 4904, 5888, 6130, 7360, 9808, 12260, 14099, 14720, 19616, 24520, 28198, 29440, 39232, 49040, 56396, 70495, 78464, 98080, 112792, 140990, 156928, 196160, 225584, 281980, 392320, 451168, 563960, 784640, 902336, 1127920, 1804672, 2255840, 3609344, 4511680, 9023360, 18046720]

約数ペア:

[(1, 18046720), (2, 9023360), (4, 4511680), (5, 3609344), (8, 2255840), (10, 1804672), (16, 1127920), (20, 902336), (23, 784640), (32, 563960), (40, 451168), (46, 392320), (64, 281980), (80, 225584), (92, 196160), (115, 156928), (128, 140990), (160, 112792), (184, 98080), (230, 78464), (256, 70495), (320, 56396), (368, 49040), (460, 39232), (613, 29440), (640, 28198), (736, 24520), (920, 19616), (1226, 14720), (1280, 14099), (1472, 12260), (1840, 9808), (2452, 7360), (2944, 6130), (3065, 5888), (3680, 4904)]