1871980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 4386816

約数和(自身を除く): 2514836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 127, 134, 220, 254, 268, 335, 508, 635, 670, 737, 1270, 1340, 1397, 1474, 2540, 2794, 2948, 3685, 5588, 6985, 7370, 8509, 13970, 14740, 17018, 27940, 34036, 42545, 85090, 93599, 170180, 187198, 374396, 467995, 935990, 1871980]

約数ペア:

[(1, 1871980), (2, 935990), (4, 467995), (5, 374396), (10, 187198), (11, 170180), (20, 93599), (22, 85090), (44, 42545), (55, 34036), (67, 27940), (110, 17018), (127, 14740), (134, 13970), (220, 8509), (254, 7370), (268, 6985), (335, 5588), (508, 3685), (635, 2948), (670, 2794), (737, 2540), (1270, 1474), (1340, 1397)]