18898160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12433}}^1$

素因数の和:12465

約数の個数: 40

約数和(自身を含む): 46254480

約数和(自身を除く): 27356320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 12433, 24866, 49732, 62165, 99464, 124330, 198928, 236227, 248660, 472454, 497320, 944908, 994640, 1181135, 1889816, 2362270, 3779632, 4724540, 9449080, 18898160]

約数ペア:

[(1, 18898160), (2, 9449080), (4, 4724540), (5, 3779632), (8, 2362270), (10, 1889816), (16, 1181135), (19, 994640), (20, 944908), (38, 497320), (40, 472454), (76, 248660), (80, 236227), (95, 198928), (152, 124330), (190, 99464), (304, 62165), (380, 49732), (760, 24866), (1520, 12433)]