18719800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 48568320

約数和(自身を除く): 29848520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 67, 88, 100, 110, 127, 134, 200, 220, 254, 268, 275, 335, 440, 508, 536, 550, 635, 670, 737, 1016, 1100, 1270, 1340, 1397, 1474, 1675, 2200, 2540, 2680, 2794, 2948, 3175, 3350, 3685, 5080, 5588, 5896, 6350, 6700, 6985, 7370, 8509, 11176, 12700, 13400, 13970, 14740, 17018, 18425, 25400, 27940, 29480, 34036, 34925, 36850, 42545, 55880, 68072, 69850, 73700, 85090, 93599, 139700, 147400, 170180, 187198, 212725, 279400, 340360, 374396, 425450, 467995, 748792, 850900, 935990, 1701800, 1871980, 2339975, 3743960, 4679950, 9359900, 18719800]

約数ペア:

[(1, 18719800), (2, 9359900), (4, 4679950), (5, 3743960), (8, 2339975), (10, 1871980), (11, 1701800), (20, 935990), (22, 850900), (25, 748792), (40, 467995), (44, 425450), (50, 374396), (55, 340360), (67, 279400), (88, 212725), (100, 187198), (110, 170180), (127, 147400), (134, 139700), (200, 93599), (220, 85090), (254, 73700), (268, 69850), (275, 68072), (335, 55880), (440, 42545), (508, 36850), (536, 34925), (550, 34036), (635, 29480), (670, 27940), (737, 25400), (1016, 18425), (1100, 17018), (1270, 14740), (1340, 13970), (1397, 13400), (1474, 12700), (1675, 11176), (2200, 8509), (2540, 7370), (2680, 6985), (2794, 6700), (2948, 6350), (3175, 5896), (3350, 5588), (3685, 5080)]