18187940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 41973120

約数和(自身を除く): 23785180

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2081, 2185, 4162, 4370, 8324, 8740, 10405, 20810, 39539, 41620, 47863, 79078, 95726, 158156, 191452, 197695, 239315, 395390, 478630, 790780, 909397, 957260, 1818794, 3637588, 4546985, 9093970, 18187940]

約数ペア:

[(1, 18187940), (2, 9093970), (4, 4546985), (5, 3637588), (10, 1818794), (19, 957260), (20, 909397), (23, 790780), (38, 478630), (46, 395390), (76, 239315), (92, 197695), (95, 191452), (115, 158156), (190, 95726), (230, 79078), (380, 47863), (437, 41620), (460, 39539), (874, 20810), (1748, 10405), (2081, 8740), (2185, 8324), (4162, 4370)]